B

It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.

　　As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、職業(yè)) in science.

　　Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .

　　These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.

　　Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.

　　We know a lot about our world, but there are still many answers that we do not have, and we are curious.

45．According to the passage, which of the following statements is true?

　  A．People are curious in the same way.

　  B．People in different countries are interested in different things.

　  C．Men and women are curious about different things.

　  D．People of different ages are interested in different things

46．Scientists who work with the biological sciences study____.

A．the earth , the oceans and the sky          B．man-made things

C．plants and animals                               D．ocean water

47．When you run, your muscles need ____.

A．more nutrition and oxygen    B．more signals    C．more salt   D．water

48．A rock cracks _____.

A．in wet regions                                     B．in dry regions

C．a(chǎn)t very high or very low temperatures               D．when salty water falls in

 

【答案】

45 ---48   DCAC 

【解析】略

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2011-2012學(xué)年山東省濟(jì)南外國語學(xué)校高一下學(xué)期期中英語試卷（帶解析） 題型：閱讀理解

Lily，Susan, David, Chris和Michael分別計(jì)劃假期去景點(diǎn)旅游，閱讀下面旅游雜志上的6個(gè)旅游廣告（A、B、C、D、E和F），從中找出符合5位興趣愛好的最佳選項(xiàng)，選項(xiàng)中有一項(xiàng)是多余選項(xiàng)。
1. David：I like a relaxed and simple lifestyle.
2. Lily：I enjoy shopping, dining and nightlife. I want to surf and learn about Hawaiian culture.
3. Susan：I like a relaxed lifestyle. I want to take a scenic helicopter and watch the amazing eruptions( 火山噴發(fā)) of red-hot lava.
4.Chris：I like surfing and mountain-climbing and enjoy shopping, dining and nightlife.
5. Michael：I love outdoor activities and want to take a scenic helicopter.

A  Oahu Island – the gathering place
Home to 80 per cent of Hawaii’s people, Oahu lets you enjoy the bustling and colourful city life of Honolulu, and world-famous Waikiki beach. Glamorous Waikiki is the main place for sun and surf. Otherwise go swimming, snorkeling, or relax and sunbathe on the many other fabulous beaches. Oahu is the place to be for shopping, great dining and great nightlife! But if nightclubs aren’t your scene, you may like to visit the museum at Pearl Harbour, or climb Nuuanu Oali mountain to find the best view of the whole island.
B  Hawaii – the big island
Hawaii is also the name of the biggest island of the group. If you’d like a more relaxed lifestyle with friendly locals, then the Big Island has plenty of room for you. Take a helicopter ride around snow-capped Manna Kea, the highest mountain in the world if you measure from the ocean floor. Or visit Kilauea, the world’s largest active volcano（活火山）. Hawaii’s dramatic black lava landscape even include beaches with black sand.
C  Kauai – the garden island
Small and uncrowded, Kauai is the perfect gateway for families and couples looking for a peaceful holiday. It has world-class golf courses, with great views! This island is ideal for those who love outdoor activities. The beautiful green Na Pali cliffs and coast are a great place to go camping, hiking and horse riding. You can go kayaking on the river, or take scenic helicopter flights.
D  Maui – the rainbow island
Maui combines beautiful scenery with luxury resort-style living. No matter where you stay, you’ll see many wonderful rainbows. Of course there are the lovely beaches for snorkeling, surfing and whale watching, but you can also hike up Haleakala, the world’s largest inactive volcano. The town of Lahaina offers a lu’au - a fun evening of hula dancing and traditional banquet. It isn’t as busy as Waikiki, but there are still plenty of shopping, fine restaurants and nightlife.
E  Lanai – Hawaii’s best-kept secret
Far away from the crowds, this island offers you a totally relaxing experience. It is a haven for all kinds of wildlife. You can go fishing on the deserted beaches, or just laze there. Maybe you can climb Lanaihale mountain. From the top you can see all the other islands.
F  Molokai – very different
The lifestyle here lets you understand the way Hawaii was many years ago. If you’re looking for a total escape from a busy city life, this is definitely the place. Forget shopping, fancy dining and nightlife. Let a guide bring you on a horseback or bicycle tour of the rugged but beautiful scenery. Hike over the stunning cliffs of the Kalaupapa peninsula. The most important thing to do on Molokai, though, is relax and slow down.

查看答案和解析>>

科目：高中英語 來源：山東省濰坊市2010屆高三下學(xué)期第二次模擬考試英語試卷 題型：閱讀理解


B
Edinburgh Zoo makes plans to bring a pair of giant pandas from China to Scotland． Representa-tives from Edinburgh Zoo have recently retumed from China, where they signed a letter ofintent(意向書) making a promise to bring giant pandas to the zoo．
It has been suggested that the breeding pair should be rented to the Royal Zoological Society ofScotland ( RZSS) for 10 years and it is hoped they would give birth to babies dunng that time． Edin-burgh Zoo would be the eighth zoo in the West to care for the species if the project goes ahead．
Zoo chiefs said that looking after the endangered animals could benefit conservation．David Windmill, chief of RZSS, said, "It is an opportunity to work on a global level with other consc'na-tionists to gain a better understanding of the giant panda, the threats they face, and what we can do to ensure their survival．"
At present, there are currendy only around l, 500 giant pandas in the wild．RZSS has been working on the project for almost a year, and hopes to have giant pandas at Edinburgh Zoo by 2011, the year of the society's centenary．
Mr．Windmill said that the*project has received strong support from the UK and Scottish Gov- emments and that this must continue if the zoo is to reach an agreement with the Chinese． As part of the p．roposed agreement with the Chinese government, Edinburgh Zoo will cooperate on research pro-jects benefiting conservation in the wild．
RZSS will also provide considerable money to support giant panda conservation projects in the wild． Giant pandas live in a few mountain ranges in central China and feed almost wholly on bam- boo, which makes up 99% of the their diet．
61．What result did zoo representatives get from China?
A．A breeding pair is on loan to RZSS for ten years．
B．China promised to sell two giant pandas before 2011．
C．They sig:ned a letter of intent about giant pandas to be loaned to Edinburgh Zoo．
D．China promised to offer the money but not．the experts for research into giant pandas．
62．If Edinburgh Zoo can borrow giant pandas, what will happen?
A．RZSS will celebrate its centenarv in 2011．
B．Scotland will be the eighth country to have giant pandas．
C．RZSS will have a better understanding of living habits of giant pandas．
D．Edinburgh Zoo will be the eighth zoo to have Chinese pandas in the world．
63．The underlined part "the project" in Paragraph 4 refers to “______ ”
A．the celebration of RZSS's centenary
B．introducing giant pandas to RZSS's collection
C．the Royal Zoological Societ)r of Scotland itself
D．borrowing giant pandas from China for conservation
64．At present what seems to be the key factor for giant pandas to successfully go to Edinburgh Zoo?
A．RZSS's attitude．
B．The Chinese govemment's attitude．
C．Edinburgh Zoo's support．,
D．The Scottish government' attitude．
65．The best title for this passage would be "______"
A．Edinburgh Zoo expects giant pandas from China
B．Edinburgh Zoo does research into giant pandas
C．Scot_land supports giant panda conservation
D．Giant pandas live happily at Edinburgh Zoo

查看答案和解析>>

科目：高中英語 來源：2013-2014學(xué)年湖南省十三校高三3月第一次聯(lián)考英語試卷（解析版） 題型：閱讀理解

"My dream has come true．I have always wanted to be a Grand Slam （大滿貫） champion．"These are the words of the Chinese tennis player Li Na after she became the first Asian woman to win the Australian Open final on Jan．25th．2014．

???? "People were saying I'm getting old．So this is a great success for such an old woman．" the 32-year-old girl joked．

???? Miss Li has a tattoo （文身）．She has dyed her hair many different colors．And, at the 2008 Beijing Olympics, she told her fans to "shut up" when they got too noisy in their support．

????????????? Li Na was born in Wuhan．She started to play tennis at the age of 6．She once recalled: "As a child．I suffered a lot because every day I had to wake up early to practice．After school I had to practice more．I didn't have time to play．"

???? Luckily, the strong girl didn't give up．thus making history for Chinese tennis time after time．Now the new champion is already thinking about winning another Grand Slam title．"When you have one title, surely you will think about another," she says．not hiding her ambition．

???? "Chinese people are so lacking in confidence on the tennis court．If there is a person like me who can prove we Chinese can do it, the other young players in China will feel the same," she said．

1.Li Na began to learn playing tennis in the year of _____．

A．1988????? ????????????? B．1982 ????????????? C．1986 ????????????? D．1990

2.We can learn from the passage that _____．

A．Li Na is always impatient with her fans

B．Li Na is an old girl

C．Li Na is a fashionable girl

D．Li Na is a girl without ambition

3.When she began to play tennis, Li Na was _____．

A．happy ????????????? B．sad??? ????????????? C．excited?? ????????????? D．bored

4.Which of the following is WRONG about Li Na?

A．Li Na took part in the 2008 Beijing Olympics．

B．Li Na has already won a Grand Slam champion．

C．Li Na had to wake up early to practice playing tennis．

D．Li Na said she lacked confidence on the tennis court．

5.The passage mainly tells us _____．

A．something about the tennis

B．something about how to play tennis

C．the Chinese people and the tennis

D．the Grand Slam champion—Li Na

 

查看答案和解析>>

科目：高中英語 來源：廣東省09-10學(xué)年高一下學(xué)期單元檢測(cè)試題（英語） 題型：閱讀理解

 

The film “Avatar” has received great popularity around the world. It turned out to be a great success. The film got ＄1 billion in ticket sales in a very short time. The story in the film happens on an alien planet called Pandora where many strange species live. Among the planet’s inhabitants(居民,棲息動(dòng)物)，the one that has the most similarities with humans is the Na’vi, and it is the struggle between the Ma’vi and human invaders(入侵者) that forms the story of the film.

As to the factors(因素) leading to the film’s success, many think that the entertaining feast(盛宴) for the eyes and the wonderful story shouldn’t be forgotten, but the new language invented especially for the film which provides audiences with a new experience also plays an important part.

In order to increase the truthfulness of an alien race（外星人）, the film’s director James Cameron asked an expert in languages from the University of Southern California to invent a language for the Na’vi. Professor Paul Frommer combined the languages spoken among Indians, Africans and mid-Asians and worked with James Caneron for four years to create the Na’vi language based on the original 30 words that the director had already come up with.

According to Professor Frommer, the most important characteristic of the Na’vi language is that it could be pronounced. “This is an alien language but obviously it has to be spoken by human actors and actresses,” Professor Frommer told the BBC, “it has to sound natural and it should make human beings comfortable when using it.”

The language has a vocabulary of around 1000 words but Progessor Formmer hopes to enlarge the vocabulary in possible follow-ups to the film and in video games. The professor hopes that one day his creation will be as successful as the Klingon alien language from the “Star Trek”films. “There’s a translation of Hamlet into Klingon and it has received great popularity among the audiences,” says Professor Frommer，“if anything like this happens to the Na’vi language, I’d be very happy.”

1. What do we know about“Avatar” from this passage?

A. The story in it is a moving love story.    

 B. It brings the producer ＄1 billion in total.

C. The story in it happens on an alien planet.

 D. It talks about humans and aliens’ friendship.

2. The director of “Avatar” James Cameron had a language invented for the Na’vi to     

A. make the film a whole mystery          B. make the Na’vi more believable

C. make the Na’vi different from humans    D. make the film have specific characteristics

3. Who first created the basic words of the Na’vi language?

A. Paul Frommer.        B. An Indian.    C. James Cameron     D. Hamlet.

4. The important feature of the Na’vi language is that      

A. it can be spoken by humans         B. it has just 30 original words

C. it has a vocabulary of 1000 words.    D. it is like the Klingon alien language

5. We can infer from the passage that       

A. James Cameron will produce follow-ups to “Avatar”

B. the Na’vi language is another kind of the Klingon language

C. the director believes the Na’vi language will be popular

D. Paul Frommer hopes to add new words to the Na’vi language

 

查看答案和解析>>

科目：高中英語 來源：湖北省期中題 題型：聽力題

     聽下面5段對(duì)話。每段對(duì)話后有一個(gè)小題，從題中所給的A、B、C三個(gè)選項(xiàng)中選出最
佳選項(xiàng)，并標(biāo)在試卷的相應(yīng)位置。聽完每段對(duì)話后，你都有10秒鐘的時(shí)間來回答有關(guān)小
題和閱讀下一小題。每段對(duì)話僅讀一遍。
1. What can we learn from the conversation ?
A. The concert is on December 24 th.
B. The man hasn’t got the ticket for the concert.
C. Na Ying is going to sing two songs together with Sun Nan.
2. How much does the man charge the woman in the end ?
A. $5.05.
B. $25.
C. $25.05
3. What’s the woman’s phone number ?
A. 3386579.
B. 3387956.
C. 3385679.
4. Who is Fidel probably ?
A. It is Mary’s pet.
B. It is Mary’s baby.
C. It is George’s pet.
5. Where does the conversation take place ?
A. At a booking office.
B. On a plane.
C. At an airport.

查看答案和解析>>

同步練習(xí)冊(cè)答案