Exhausted and unhappy, you still have to squeeze a smile to your friends, or teachers. That’s just life, you may think. But new research suggests that putting on a fake smile can worsen people’s mood and even lower work efficiency.
Lead researcher Brent Scott with other researchers studied a group of bus drivers for two weeks. They tried to find out what happened when the drivers were involved in “surface acting” or fake smiling, and the opposite, “deep acting” which means people put on real smiles by recalling pleasant memories or thinking about their current situation more positively.
The results showed that on days when drivers were forced to smile, they felt depressed and didn’t want to work. On days when they smiled due to positive thoughts, their mood improved a lot as well as their work efficiency.
The research goes against the popular belief among companies that employees should be cheerful to customers at all times. They include employees of shops, banks, call center workers and others who have face-to-face contact with members of the public. “Smiling for the sake of(為了) smiling can lead to emotional exhaustion and coldness, and that’s bad for the organization,” Scott told the Daily Mail.
The study also showed that women were harmed more by fake smiling than men. Their mood and work performance both worsened more. But they were helped more by deep acting — their mood became better and they worked more efficiently.
However, while deep acting seemed to improve mood in the short term, Scott says it’s not a long-term solution for unhappiness.
“There have been some suggestions that if you do this over a long period that you start to feel inauthentic(不真實(shí)的),” Scott said. “You may be trying to cultivate positive emotions, but at the end of the day you may not feel like yourself anymore.”
小題1:Brent Scott and others’ experiments on bus drivers suggest that ______.
A．depression among bus drivers is common
B．thinking in a positive way helps with work efficiency
C．bus drivers with pleasant memories tend to be less efficient
D．the bus drivers’ work efficiency is determined by their mood
小題2:According to the article, which of the following statements about “fake smiling” is TRUE?
A．It is good for the business but bad for the employees.
B．It doesn’t work on people who are emotionally expressive.
C．It is a widely accepted cultural practice in the US.
D．It causes more harm to women than men.
小題3:We can conclude from the article that the researchers think that ______.
A．people should be true to their feelings
B．smiling helps to put people in a good mood and become more efficient
C．it is unnecessary to cultivate positive emotions
D．deep acting can improve mood in the long run
小題4:The article is mainly about ______.
A．the importance of smiling during face-to-face contact
B．a(chǎn) new study on fake smiling and its influence on people
C．suggestions on improving work efficiency
D．how to cheer up when you are exhausted

小題1:B
小題2:D
小題3:A
小題4:B

試題分析：文章大意：一項(xiàng)新的調(diào)查研究表明，不是發(fā)自內(nèi)心的虛假微笑會(huì)讓人情緒變差甚至于會(huì)降低工作效率，與此相反發(fā)自內(nèi)心的微笑卻能讓人情緒高漲并且能提高工作效率，所以人們要真實(shí)地對(duì)待自己的感覺。
小題1:B推理判斷題。從文章第三段The results showed that on days ... , On days when they smiled due to positive thoughts, their mood improved a lot as well as their work efficiency.判斷當(dāng)人們因?yàn)檎鎸?shí)的想法而微笑時(shí)，他們的情緒會(huì)變好同樣工作效率也會(huì)提高，所以B選項(xiàng)正確。
小題2:D細(xì)節(jié)題。文章倒數(shù)第三段The study also showed that women were harmed more by fake smiling than men.研究也表明由于佯裝微笑婦女受的危害要比男人大，由此判斷D為正確答案。
小題3:A推理判斷題。文章最后一段“There have been some suggestions that if you do this over a long period that you start to feel inauthentic(不真實(shí)的),” Scott said. “You may be trying to cultivate positive emotions, but at the end of the day you may not feel like yourself anymore.”如果很長(zhǎng)時(shí)間都在假裝微笑，那么自己就會(huì)感覺不真實(shí)，而且會(huì)感覺不像自己了。由此判斷研究人員認(rèn)為人們要真實(shí)地對(duì)待自己的感覺，所以A選項(xiàng)正確。
小題4:B 主旨大意題。本文是調(diào)查報(bào)告，開頭提出中心。從第一段But new research suggests that putting on a fake smile can worsen people’s mood and even lower work efficiency.判斷文章是一篇關(guān)于虛假微笑及其影響的研究報(bào)告，所以B選項(xiàng)正確。
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

It’s 8:30, time for John to start work. So he turns on his radio. Then he eats breakfast. As he eats, he reads his e-mail and reviews his to-do list. Then he sits on the sofa and thinks about an article he needs to write ... Wait a minute! Radio? Breakfast? Sofa? What kind of workplace is this? Well, actually it is John’s house, and he is a telecommuter —  he works at home, communicating with the workplace through the Internet.
Like John, millions of people — and their employers — are finding that telecommuting is a great way to work. Telecommuters can follow their own timetables. They work in the comfort of homes, where they can also look after young children or elderly parents. They save time and money by not traveling to work. Their employers save, too, because they need less office space and furniture. Studies show that telecommuters change jobs less often. This saves employers even more money. Telecommuting helps society, too, by reducing pollution and traffic problems.
Jobs that are suited to telecommuting include writing, design work, computer programming and accounting. If a job is related to working with information, a telecommuter can probably do it.
小題1:From the passage we can learn that John does his job           .
A．by telephonB．through the Internet
C．in his officeD．a(chǎn)way from home
小題2:One of the advantages of telecommuting is that you can        .
A．work for several employersB．enjoy a lot of traveling
C．get along well with other workersD．work on your own schedule
小題3:Telecommuters change jobs less often, so         .
A．their employers can save money
B．their employers will give them a higher pay
C．they can get more work experience
D．they will have a longer paid holiday
小題4:The underlined phrase “suited to” in the third paragraph probably means “       ”.
A．a(chǎn)cceptable forB．bad forC．difficult forD．fit for

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

The computer keyboard helped kill shorthand---a system of rapid handwriting, and now it's threatening to finish off handwriting as a whole. When handwritten essays were introduced on the SAT exams for the class of 2011, just 15% of the most 1.5 million students wrote their answers in cursive (草寫字母）.The rest? Block letters.
And those college hopefuls are just the first edge of a wave of US students who no longer get much handwriting instructions in the primary grades, frequently 10 minutes a day or less. As a result, more and more students struggle to read and write cursive.
At Keene Mill Elementary School in Springfield, all their poems and stories are typed. Children in Fairfax County schools are taught keyboarding beginning in kindergarten. Older students who never mastered handwriting say it doesn't affect their grades.
There are those who say the culture is at a crossing, turning from the written word to the typed one. If handwriting becomes a lost form of communication, does it matter?
It was at University of Virginia that researchers recently discovered a previously unknown poem by Robert, written in his unique script. Handwritten documents are more valuable to researchers, historians say, because their authenticity (真實(shí)性）can be confirmed. Students also find them more fascinating.
The loss of handwriting also may be a cognitive (認(rèn)知的）opportunity missed. Several academic studies have found that good handwriting skills at a young age can help children express their thoughts better-a lifelong benefit.
It doesn't take much to teach better handwriting skills. At some schools in Prince George's County, elementary school students use a program called Handwriting Without Tears for 15 minutes a day. They learn the correct formation of manuscript letters through second grade, and cursive letters in third grade.
There are always going to be some kids who struggle with handwriting because of their particular neurological (神經(jīng)系統(tǒng)的)wiring, learning issues or poor motor skills. Educators often point to this factor in support of keyboarding.
小題1:What is the author concerned about after 2011 SAT exams?
A．Keyboarding.B．Shorthand
C．Handwriting.D．Block letters.
小題2:A poem by Robert mentioned in the passage is used to _________.
A．prove how valuable handwriting is
B．explain what a famous poet he is
C．show how unique his poem is
D．stress how fascinating the documents are
小題3:The example of Handwriting Without Tears helps to argue that_________.
A．the schools are responsible for the loss of handwriting
B．the loss of handwriting is a cognitive opportunity missed
C．it doesn't take much to teach better handwriting skills
D．the culture is turning from the written word to the typed one
小題4: According to the author, when is a perfect time to learn handwriting?
A．Kindergarten.B．Primary school.C．High school.D．College.
小題5:What is the author’s attitude towards this debate?
A．Devotion.B．Encouragement.C．critical.D．Objective.

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Bicycle Safety

Operation　Always ride your bike in a safe, controlled manner on campus. Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.
Theft Prevention　Always securely lock your bicycle to a bicycle rack—even if you are only away for a minute. Register your bike with the University Department of Public Safety. It’s fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.
Equipment
Brakes　Make sure that they are in good working order and adjusted properly.
Helmet　A necessity, make sure your helmet meets current safety standards and fits properly.
Lights　Always have a front headlight—visible at least 500 feet in front of the bike. A taillight is a good idea.
Rules of the Road
Riding on Campus　As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15 mph, unless otherwise posted. Always give the right of way to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.
Bicycle Parking　
Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such spots can result in a fine.
If Things Go Wrong
If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:
×No bicycle registration…$25      ×Bicycle parking banned…$30
×Blocking path with bicycle…$40   ×Violation of bicycle equipment requirement…$35
小題1:Registration of your bicycle may help you 　　　.
A．find your stolen bicycleB．get your serial number
C．receive free repair servicesD．settle conflicts with walkers
小題2:According to the passage, what bike equipment is a free choice for bicycle riders?
A．Brakes.B．A helmet.C．A headlight.D．A taillight.
小題3:If you lock your bicycle to a tree on the campus, you could be fined 　　　.
A．$25B．$30C．$35D．$40
小題4: What is the passage mainly about?
A．A guide for safe bicycling on campus
B．Directions for bicycle tour on campus
C．Regulations of bicycle race on campus
D．Rules for riding motor vehicles on campus

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

It had been a difficult move. I’d left my family and friends in Indiana, the beloved state where I’d lived most of my life. My new home in Florida was thousands of miles away from anything I knew. It was hot—all the time. Jobs were hard to come by, but I was up for almost any challenge.
At last, I taught in a special school where students have severe learning and behavioral difficulties.
Another teacher and I had spent weeks teaching the children appropriate behavior for public outings. Unexpectedly, only a few students, including Kyle, had not earned the privilege of going. He was determined to make his disappointment known.
In the corridor(走廊) between classrooms, he began screaming, cursing, spitting, and swinging at anything within striking distance. Once his outburst died down, he did what he’d done when he was angry at all his other schools, at home, even once at a juvenile detention(拘留)center. He ran.
People watched in disbelief as Kyle dashed straight into the heavy morning traffic in front of the school.
I heard someone shout, “Call the police!”
But I ran after him.
Kyle was at least a foot taller than me. And he was fast. His older brothers were track stars at the nearby high school. But I could run long distances without tiring. I would at least be able to keep him in my sight and know he was alive.
After several blocks of running directly into oncoming traffic, Kyle slowed his pace.
He took a sharp left. Standing next to a trash bin, Kyle bent over with his hands on his knees. I must have looked ridiculous. But his was not a look of fear. I saw his body relax. He did not attempt to run again. Kyle stood still and watched me approach. I had no idea what I was going to say or do, but I kept walking closer.
He opened his mouth to speak when a police car pulled up, abruptly filling the space between Kyle and me. The school principal and an officer got out. They spoke calmly to Kyle, who willingly climbed into the back of the vehicle. I couldn’t hear what was said, but I didn’t take my eyes off Kyle’s face, even as they drove away.
I couldn’t help but feel that I had failed him, that I should have done or said more, that I should have fixed the situation.
I shared my feelings with a speech therapist who was familiar with Kyle’s history. “No one ever ran after him before, Rachel,” she said. “No one. They just let him go.”
Things changed the day he ran and I ran after him, even though I didn’t have the right words, even though I wasn’t able to save him from the mess he was in. It was the day I didn’t throw my hands in the air and decide he was too fast, a waste of time and effort , a lost cause. It was the day my mere presence was enough to make a profound difference.
小題1:From the passage we know that _____.
A．the author left her family to Florida because jobs were hard to come by in Indiana.
B．students were allowed to go out after they passed some specific tests.
C．the author worked in a school where students were excellent.
D．no teacher had ever run after Kyle before except the author .
小題2:Which of the following description about Kyle is not true?
A．He had some behavioral difficulties and once moved from one detention to another.
B．He used to run out to let out his anger when he was in school,home or juvenile detention.
C．Different from his brothers, he learned in a special school while not a normal high school.
D．He was moved by his teacher who treated him with more patience and understanding.
小題3:Which is the correct order of the trace?
①He burst out when he knew he couldn’t go out.      ②I decided to run after him.
③Kyle stoppped beside a trash bin.                      ④A police car came and Kyle left with it.
⑤He rushed into the heavy morning traffic.       ⑥Kyle slowed his pace.
⑦I walked toward Kyle.
A．①⑤②⑥③⑦④B．①⑤②④⑥⑦③
C．⑤④②⑥③⑦①D．①②⑥⑦③④⑤
小題4:What is the best title of the passage?
A．Kyle, a Boy with Learning and Behavior Difficulties.
B．The Teacher Who Ran.
C．A School with Special Students.
D．A Terrible Conflict.

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

You’ve bought what you need. The grocery cashier asks, “Will that be paper or plastic? You reply “Plastic, please.”
This seems like a simple question and there are plenty of reasons we choose plastic: easier to carry, lighter than paper bags, possibly less damaging to the environment, less expensive to the shop owners, able to be used as trash bag, and so on. There are different opinions on plastic and paper. Now let’s follow the travels of 3 plastic bags. It begins at the grocery store with the customer’s choice.
Plastic Bag 1: As the waste engineer come by and pick up the trash, the first plastic bag falls out. It sits on a small street for a couple of hours until a car comes along and takes it down to the road. Then a gust of wind blows it across the road, then another car, then another gust of wind finally makes its way to the beach. Water fills the plastic bag and makes it look like a jellyfish. A seal(海豹) swims by, thinking it looks very interesting, and swallowed it. The plastic bag may stay in the seal’s stomach for months, maybe years. You see, our lovely animals have been living thousands of years in a world where everything can be eaten.
Plastic Bag 2: This bag does make its way to landfill(垃圾場(chǎng)). Before they have a chance to cover up the thousands of pounds of daily waste, a strong wind comes up and blows these plastic bags out of the landfill. Once the wind stops, workers will be sent to collect thousands of bags around. But they can’t possibly get them all. So our little bag continues his adventure getting caught in trees, eaten by birds or making its way to our lakes or rivers.
Plastic Bag 3: The last bag also blows away but is caught in a landfill where it sits for many years, as all the trash is wrapped in a big plastic bag, making natural degradation(降解) impossible. Although workers do much work to make sure water and air system won’t be polluted, some do. Guess what, plastic bags are made from petrol, a harmful waste material, which in one way or another makes its way to the environment.
Another problem with putting plastic bags in out trash is that our landfills for most cities may be filled in about 20 years. More importantly, since we are running out of land to build homes, you might have the pleasure of one day living on top of your plastic bags!
One of the best suggestions is not to use a bag at all or bring your own cloth bags. If you must, please choose paper bags, which, though not suggested, can be eaten by animals. And there are more opportunities recycle paper bags. It does take a little extra effort. But please have a thought about the little seal next time you say, “Plastic please.”   
小題1:According to the passage, what is NOT the reason for a customer to choose plastic bags?
A．He can use plastic bags to carry trash later.
B．He finds paper bags heavier than plastic bags.
C．He finds plastic bags more convenient to carry.
D．He can save money for plastic bags are cheaper.
小題2:The author describes the travel of Plastic Bag 1 to show ______.
A．seals like eating plastic bags around them.
B．seals really have a good stomach.
C．seals are potential victims of plastic bags.
D．seals are not able to differ plastic from food.
小題3:Wrapped in a big plastic bag, Plastic Bag3_____.
A．still does harm to the environment
B．can hardly be harmful to the environment
C．is much safer than Plastic Bag2
D．will end up being eaten by seals or some fish
小題4:What will the following part of this passage talk about?
A．Suggestions on reducing harm of plastic bags.
B．Disadvantages of using too many plastic bags.
C．Persuading people into using paper bags.
D．Other potential victims of plastic bags.
小題5:What is the overall tone of this passage?
A．ExcitedB．SeriousC．IronicalD．Casual

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

This year’s Newsweek list of the top 100 high schools shows that today those with fewer students are rising.
Ten years ago, when the first Newsweek Top School List based on college-level test participation was published, only three of the top 100 schools had graduating classes smaller than 100 students. This year there are 22.
Fifty years ago, they were the latest thing in educational reform: big, modern high schools outside the cities with thousands of students. Big schools meant economic efficiency, a greater choice of courses, and better football teams. But only years later did we understand that it involved the difficulty of strengthening personal connections between teachers and students. SAT scores began dropping; on average, 30% of students did not complete high school in four years, a figure that rose to 50% in poor city neighborhoods. High schools for a variety of reasons seemed to have made little progress.
Size isn’t everything, but it does matter, and the past decade has seen a noticeable trend toward smaller schools. This has been partly due to the Bill and Melinda Gates Foundation, which has invested $1.8 billion in American high schools, helping to open about 1,000 small schools — most of them with about 400 kids, each with an average enrollment of only 150 students per grade. About 500 more are on the drawing board. Districts all over the country are taking notice, along with mayors in cities like New York, Chicago and San Diego. And most noticeable of all, there is the phenomenon of large urban and suburban high schools that have split up into smaller units of a few hundred.
Hillsdale High School in San Mateo, California, is one of those ranking No.423 — among the top 2% in the country. In 2003, Hillsdale remade itself into three “houses”. 300 students arriving ninth graders are randomly assigned to one of the houses, where they will keep the same four core subject teachers for two years before moving on to another for 11th and 12th grades. Teachers meet with students in groups of 25, five mornings a week, for open-ended discussions of everything from homework problems to bad Saturday-night dates. The advisers also meet with students privately and stay in touch with parents. Along with the new structure came the percentage of freshmen taking biology jumped from 17 to 95.”It was rough for some. But by senior year, two-thirds have moved up to physics,” says Jeff Gilbert. “Our kids are coming to school in part because they know there are adults here who know them and care for them.”
But not all schools show advances after downsizing, and it remains to be seen whether smaller schools will be a cure-all solution.
Ranking schools is always controversial. Over the years this system has been criticized for its simplicity — list of top U.S. high schools was made merely according to the proportion of students taking college-level exams. This year a group of 38 superintendents (地區(qū)教育主管) from five states wrote to ask that their schools should be excluded from the calculation. “It is impossible to know which high schools are ‘the best’ in the nation,” their letter read. “Determining whether different schools do or don’t offer a high quality of education requires a look at many different measures, including students’ overall academic accomplishments, their later performance in college, and taking into consideration the unique needs of their communities.”
小題1:What can we learn about the schools sponsored by the Bill and Melinda Gates Foundation?
A．They are often located in poor neighborhoods.
B．They are popular with high-achieving students.
C．They are mostly small in size.
D．Another 150 schools invested by the Foundation are planned to be set up.
小題2:According to Jeff Gilbert, the classes at Hillsdale were set up so that students could ______.
A．tell their teachers what they did on weekends
B．experience a great deal of pleasure in learning
C．maintain closer relationships with their teachers
D．deal with the demanding biology and physics courses
小題3:Newsweek ranks high schools according to ______.
A．their students’ academic achievement
B．the number of their students admitted to college
C．the size and number of their graduating classes
D．their college-level test participation
小題4:What attitude does the author have towards the present trend in high school education?
A．Subjective.B．Objective.C．Indifferent.D．Disapproving.
小題5:Which of the following can be the best title for the passage?
A．Providing Good Education for Baby Boomers
B．Top School List Winning National Support
C．Small Schools Rising in popularity
D．Students Meeting Higher Academic Standards

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

When someone says “SHARK” most people think of a big, toothy, underwater animal; basically we are imagining a Great White. In fact sharks come in all shapes, sizes and even colors! Follow me please; I’d like to show you a very special small shark commonly known as horn sharks, only found in the coastal waters of north-west North America.
Look at this shark, and you can easily see the horns on it and you will know the reason why it is called the horn shark is that it has the broad, flattened head and two large horn-like spines(脊椎) found behind its eyes and makes it one of the hardiest of all shark species. What makes it unique is that as its enemy attempts to swallow it, the spines on its back will stick into the enemy’s mouth and give a good chance for it to get away.
The horn shark is brown in color with black spots all over its body. The adults can reach up to a length of 4 feet and weigh up to 10 kg. An interesting fact about the horn shark is that it has five gills(鰓). The horn shark is a clumsy swimmer using its flexible pectoral fins(胸鰭)to push itself along the bottom of the ocean. The maximum distance that has ever been recorded for a horn shark to have traveled out from its habitat is 10 miles.
Today, as so little is known about its population off the Californian coast, they have been listed as being “Data Deficient” in the World Conservation Union. The horn shark is being threatened both by water pollution and commercial fishing in the area. Though they are not among those sea creatures hunted primarily for food, but they often get caught as a by-catch in fishing expeditions.
小題1:The horn shark gets its name for______.
A．its small sizeB．its large eyes
C．its two large spinesD．its brown color with spots
小題2:How is paragraph 3 mainly developed?
A．By giving descriptionsB．By following time order
C．By analyzing causesD．By making comparisons
小題3:Which factors contribute to the horn shark’s being on the “Data Deficient” list?
①That people like hunting them for pets       ②That people fish them for fun
③Water pollution off the coast               ④Knowing little about them
A．①②B．②③C．①④D．③④
小題4: According to the passage, all of the following are unique to the horn shark EXCEPT that_____.
A．it doesn’t travel far
B．it is good at swimming
C．its spines can be used to attack the enemy and escape
D．it is only found in the coastal waters of north-west North America

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Plants have family values, too; it seems, with new research suggesting they can recognize close relatives in order to work together.
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking recognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life，” Dudley said.
The study found plants from the same species of beach­-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their families.
Sea rocket, a North American species, showed stronger and healthier root growth when planted in pots with strangers than when raised with relatives from the same maternal(母系的) family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said.
Kin selection also applies to competition, because if family members compete less with each other, the group will do better overall. “Everywhere you look, plants are growing right up next to other plants，” Dudley said，“ Usually it’s a case of each plant for itself. But sometimes those plants are related, and there are benefits to not wasting resources on being competitive, and there is not really a cost to not being competitive as long as your neighbor is also not being competitive.”
Learning and memory appear to be important for kin recognition in animals, but this isn’t an option for plants, she noted.
Some researchers speculate(猜測(cè)) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.
小題1:What’s the main idea of the message?
A．Studies find plants can recognize, communicate with relatives.
B．Kin selection is important for plants.
C．Animals can recognize and memorize their relatives.
D．Competition asks plants to recognize their relatives.
小題2:Which of the following is NOT right about animals’ social skill?
A．Animals can recognize and memorize their relatives.
B．Animals’ social skill is to cooperate and share resources.
C．Animals’ social skill can recognize close relatives in order to work together.
D．Animals’ social skill is no use at all.
小題3:Plants’ kin selection is to ________.
A．grow wellB．compete with other kinds of plants
C．strengthen the relationship among siblingsD．find which one is the best
小題4:From the passage，we learn that ________.
A．sea rocket is a South American species
B．sea rocket grows aggressively alongside unrelated neighbors
C．sea rocket grows aggressively alongside its siblings
D．sea rocket is a kind of bush without flowers
小題5:How can the plants communicate with each other according to experts’ suppose?
A．Plants communicate by using tiny chemical signatures specific to each plant’s family.
B．Plants communicate with each other through their roots.
C．Plants communicate with each other by their leaves.
D．Plants communicate with each other with their flowers.

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