A 15-year-old student who invented a flashlight(手電筒) getting power from the holder's body heat is going home today from California with a big prize and a chance to do further research.
Ann Makosinski was the only Canadian among the four winners at Google's international science competition. Thousands of young scientists from around the world took part in the competition.
Winning the science and technology competition was "a surprise". Ann said, "I think it will have a great influence on my future."
Ann thanked her family for encouraging her interest in science and said that her first toy was a box of transistors(晶體管).
Ann's prize includes $ 25,000 and a "once in a-lifetime expericnce" from Google for her Hollow Flashlight, which has no moving parts or batteries.
The idea for the invention came from seeing unwanted batteries and her friend's experience. When Ann visited a friend in the Philippines, she saw the friend couldn't study when it became dark because there was no electricity or light. She saw the need for a flashlight that has no batteries - Hollow Flashlight.
In her project, Ann wrote "I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work. The flashlight needs at least a 5℃ temperature difference between the holder's body and the environment around to produce light."
A video of Ann explaining how she creatcd the flashlight has been watched more than 1.4 million times on the Internet.
Though Ann was successful, she has not made a decision about her career path. Ann hopes that she can find a way to join her love of film and science together.
The four winners were chosen from 15 final competitors from eight countries. The competition attracted thousands of students in 120 countries.

小題1:In which part of a newspaper can we probably read this passage?
A．Travel.B．Culture.C．Technology. D．Advertisement.
小題2: The first paragraph is written to be a(n) ________.
A．introduction B．warningC．a(chǎn)rgumentD．discussion
小題3:Paragraph 6 mainly tells us ________.
A．what Ann saw in the PhilippinesB．why Ann invented Hollow Flashlight
C．how Ann's family encouraged her interestD．what prize Ann got for Hollow Flashlight
小題4:According to the passage, we learn ________.
A．easy to win the international science competition
B．Hollow Flashlight is safe, noiseless and can save energy
C．Ann has made a decision to be a scientist in the future
D．few people are interested in how Ann created the flashlight

小題1:C
小題2:A
小題3:B
小題4:B

試題分析：15 歲的學(xué)生Ann Makosinski發(fā)明了用持有者的身體熱量作為電源的手電筒。今天從加州拿著$ 25,000的大獎回家，還獲得了一個(gè)進(jìn)一步研究的機(jī)會。這個(gè)發(fā)明的想法是從看到不需要的電池和她的朋友的經(jīng)歷中想到的。Hollow Flashlight環(huán)保、安全、無噪音。
小題1:細(xì)節(jié)理解題。根據(jù)第一段介紹發(fā)明手電筒可知這篇文章應(yīng)該在報(bào)紙的科學(xué)技術(shù)欄。Travel旅游； Culture文化；Technology技術(shù)；Advertisement廣告。故選C。
小題2:推理判斷題。A. introduction介紹；B. warning預(yù)告；C. argument爭論；D. discussion討論。根據(jù)第一段的內(nèi)容（一個(gè) 15 歲的學(xué)生發(fā)明了從持有者的身體熱量獲得電源的手電筒。今天從加州拿著大獎回家，還獲得了一個(gè)進(jìn)一步研究的機(jī)會。）可知，故選A。
小題3:段落歸納題。根據(jù)第6段的意思可知，這個(gè)發(fā)明的想法是從看到不需要的電池和她的朋友的經(jīng)歷中想到的。當(dāng)安在菲律賓去拜訪朋友時(shí)，她看到朋友無法學(xué)習(xí)當(dāng)天暗下來，因?yàn)闆]有電也沒有光。她看到對不用電池-空心手電筒的需要。故選B（Ann為什么發(fā)明中空手電筒）。
小題4:推理判斷題。根據(jù)I made two flashlights that do not use any batteries or harmful materials. They do not create any noise and will always work.可知，Hollow Flashlight環(huán)保、安全、無噪音。故選B。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：填空題

I’m Lisa. I’m a Chinese girl. I go to Canberra, Australia this month.  小題1: I stay there for about a month. I live with Mr. White, my dad’s old friend. His family members are very friendly to me. They take me to many places of interest in Canberra.  小題2: .
The schools in Canberra are a little different from those in China. There are about twenty students in each class.  小題3:  Most students go to school by school bus. Classes usually begin at 8:00 in the morning and end at about 4:00 in the afternoon. Usually, students can sit anywhere they like in the classroom. 小題4: They often let the students talk about questions, or sometimes they play games with the students in class.   小題5:  I think it is really happy to go to school in Canberra.
根據(jù)材料內(nèi)容，將A-E五個(gè)句子填入文中空缺處，使短文內(nèi)容完整、正確，并將其標(biāo)號填寫在下面題
號后的橫線上。

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Fishing is a popular activity and every fisherman knows the rule: Keep the big ones, throw the smaller ones back. The idea behind Lt is simple - the larger fish are probably older. If you keep the smaller ones, they won’t be able to reproduce, and the fish population is in danger.
But fishing out the largest fish from a population has an unwanted effect: Over time, fewer adult fish get really big. If only the smaller fish reproduce（繁殖）, then future generations become smaller. This is an example of evolution（進(jìn)化） in action.
One scientist, Dr David Conover has spent the last decade studying the effects of the “keep the big ones” rule and if they can be reversed（顛倒）.
To set up his experiment, Conover and his team caught hundreds of silverside fish and divided them into six groups. For two groups, Conover followed the “keep the large ones” rule and took out the biggest fish. For two other groups, he removed only the small fish.
For the last two groups, he removed fish at random (隨意的).
After five years, he measured the fish in each group. In the two groups where the largest fish were regularly removed, the average fish size was smaller than the average size in the other groups. Here was evolution in action: If only small fish survive to reproduce, then future generations of fish will also tend to be small.
For the second five years of his experiment, Conover changed the rules and took fish randomly from each group. At the end of the experiment, he found that the fish that were in the “keep the large ones” group for the first five years had started to get larger again, although he calculated it would take at least 12 years for the fish in that group to return to their original size.
In other words, it takes less time to shrink(變小) than it does to recover.
小題1: The underlined word “it” (Line 2) refers to “           ”
A．the activityB．the fish
C．the ruleD．the fisherman
小題2:Why do many people follow the “keep the big ones, throw the small ones back” rule?
A．It helps to protect fish numbers.
B．It helps to protect fish size.
C．It is the custom in most countries.
D．They will be punished if they don’t.
小題3:What did Conover find after the first five years of his experiment?
A．The “keep the big ones” rule made no difference to fish size.
B．The “keep the big ones” rule made fish smaller on average.
C．The “keep the big ones” rule made the fish bigger on average.
D．The “keep the big ones” rule affected all fish populations in the same way.
小題4: What is the author’s intention in writing this article?
A．To encourage people to fish more carefully.
B．To urge governments to change the rules of fishing.
C．To describe the results of a scientific experiment.
D．To introduce the rules of fishing to readers.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

June 11,2013 was another big day for Chinese space exploration. Shenzhou X, China’s fifth manned spacecraft, was sent into space. Three astronauts, Nie Haisheng, 49, Zhang Xiaoguang, 47, and Wang Yaping, 33, stayed in space for 15 days.
Tiangong-1 is China’s first space module(艙). It was sent into space in 2011. It will be developed into a large space station around 2020. A space station is a lab for scientific studies.Shenzhou X performed its first docking（對接）with Tiangong-1 on June 13. It docked twice during the 15 days.
The US, Russia, Japan, Canada and Europe are working together on the International Space Station (ISS).China wanted to join the ISS but was refused by the US. China decided to build its own space station.
Shenzhou X flew around the Tianggong-1 lab for the first time. This was to make sure that spacecraft could dock from more than just one direction. The astronauts carried out repair work and did experiments on the Tiangong-1.
Teaching from space
Wang Yaping, China’s second woman astronaut, taught high school and primary school students about space science. Wang talked about how things move in a micro-gravity(微重量)environment. This helped the students better understand some physics ideas, like Newton’s Law. The lessons aimed to encourage more students to learn about the universe and science.
Life up in space
The three astronauts followed a work and rest schedule（作息時(shí)間）that is similar on the Earth. They had Chinese dishes, such as Kung Pao Chicken and fried rice. The food was kept in special bags. At the time of the Dragon Boat Festival, they had Zongzi.

小題1: Tiangong-1 is _______ which was sent into space in 2011.
A．a(chǎn) space moduleB．a(chǎn) manned spacecraft
C．a(chǎn) space stationD．a(chǎn) space lab
小題2: China decided to build its own space station because________.
A．China was very rich
B．the US refused China to join the ISS
C．the astronauts wanted to stay there
D．Chinese scientists wanted to do experiment in space
小題3:Wang Yaping taught the lesson to encourage students to________.
A．become the next Newton
B．experience micro-gravity
C．know more about the life of astronauts
D．learn more about the universe and science
小題4:From the last paragraph, we can learn that the three astronauts _______.
A．had a different time schedule in space
B．cooked Chinese food for dinner
C．celebrated Dragon Boat Festival by having Zongzi
D．slept in special sleeping bags
小題5: According to the passage, which of the following is not right?
A．Among the three astronauts in China’s fifth manned spacecraft, Nie Haisheng is the oldest.
B．In about 2020, Tiangong-1 will become a space station where astronauts can do science research.
C．It is true that Shenzhou X could dock with Tiangong-1 from only one direction.
D．In space, Wang Yaping taught the students how things go in a micro-gravity environment.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

How quickly can you count from one to ten? Do you use ten different words to do it? Can you do it in English, or do you have to use your first languages? Do you count on your fingers? Many people think that numbers and math are the same all over the world. But scientists have discovered that it is not true.
People in different parts of the world use different ways to count on their fingers. In the United States, people think begin counting with their first fingers, which they extend or stick out. They then extend the rest of their fingers and finally the thumb(拇指）to count to five. Then they repeat this with the other hand to get to ten. In China, people count by using different finger positions. In this way, a Chinese person can easily count to ten on only one hand.
Besides ways of finger counting, scientists have found that cultures and languages are also different when it comes to numbers. Some languages have only a few words for numbers, and others have no words for numbers. A group of scientists studied aboriginal(土著的）people in Australia. These people don’t have hand movements to stand for numbers. They don’t even have word for numbers. However, they are still able to understand different ideas about numbers.
In a similar study, researchers from the Massachusetts Institute of Technology discovered that people of the Piraha tribe(部落） in northwestern Brazil don’t have words for numbers such as “one” or “three.”. They are not able to say “five trees” or “ten trees” but can say “some trees,” “more trees,” or “many trees.” Professor Edward Gibson said that mist people believe that everyone knows how to count, “but here is a group that does not count. They could learn, but it’s not useful in their culture, so they’ve never picked it up.”
Although all humans are able to understand quantities(數(shù)量）,not all languages have numbers and not all people use counting. Number words in a certain language are a result of people needing numbers in their daily lives. Now we know that people have different ideas about numbers and math, too.
小題1:The writer begins with the four questions in order to______.
A．make a surveyB．interest readers
C．tell a storyD．solve math problems
小題2:What do we learn from the difference in finger counting between the U.S. and China?
A．People from China count much faster than people from the U.S.
B．People from China need two hands to count from one to ten.
C．People of different cultures may use different ways of finger counting
D．People of different cultures use the same way of finger counting.
小題3:Which of following is true about aboriginal Australians?
A．They have only a few words for numbers
B．They have hand movements to stand for numbers
C．They can only count to five on their fingers
D．They can understand different ideas about numbers
小題4:The study of the Piraha tribe shows that____
A．people all over the world know how to count
B．People of the tribe have words for number
C．Some groups of people are not smart enough to count
D．Counting is not useful in the culture of the tribe
小題5:What is the main idea of the passage?
A．people from different cultures have different ideas about numbers and math
B．Chinese people can count more easily on their fingers than Americans
C．In some aboriginal culture,people don’t even know how to count
D．Some languages don’t have number words because people don’t need numbers.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

North American back bears are shy animals. They are fearful by nature, and will usuallyrun away if they see or hear people. Because of this, it can be difficult for scientists to learnabout these animals.
In order to study black bears, researchers from New Jersey, USA, catch bears and usedrugs to help them go to sleep. Researchers then work out the size and the weight of the bear,take blood to test for diseases, remove a tooth and take it to the lab to find out its age. Fromthese studies,researchers want to find out how many bears live in New Jersey, how long theylive, and how many babies theyproduce.
But in Minnesota, USA, researchers study bears that are completely awake. The bears knowthe researchers' voices and they are not afraid of die research team. With the help of a few grapes
to keep the bears busy, researchers can touch them to check their hearts, look at their teeth, and do other jobs.Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives.
In both places, the main purpose is the same—to make sure there is a healthy population of black bears. But theresearch methods and the kinds of information that researchers, are able to collect are quite different.

小題1:In the first paragraph, we can learn that North American black bears are _______.
A．shy and fearful animalsB．not found today
C．well known to scientists D．not afraid of people
小題2:The word "remove" in the second paragraph probably means _____ in Chinese.
A．拔下B．移植C．清洗D．修補(bǔ)
小題3:Which of the following may NOT be included in the New Jersey studies on bears?
A．The age.
B．The way of their communication.
C．The weight.
D．The number of babies they produce.
小題4:In the Minnesota studies, researchers _____.
A．can never get close to the bears
B．study the bears while they are asleep
C．use grapes to make the bears full
D．learn a lot about the bears' everyday lives
小題5:What do the two studies have in common?
A．Research places.B．The main purpose.
C．Research methods. D．Collected information.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

信息歸納(本部分為5小題，每小題1分，共5分)
Hundreds of years ago, life was much harder than it is today. People didn’t have modern machines. There were no modern machines, either. Life today has brought new problems. One of the biggest is pollution. Water pollution has made our rivers and lakes dirty. It kills fish and affects(影響) our drinking water. Noise pollution makes us talk louder and louder. Air pollution is the most serious kind of pollution. It affects every living thing in the world.
The world is not only hungry, but it is also thirsty for water. Only if we take steps to deal with this problem now can we avoid(避免) a serious worldwide water shortage later on. We all have to learn how to stop wasting our valuable water. One of the first steps is to develop ways of reusing it. But even if we purified(凈化) and reused the water, we still would not have enough. All we’d have to do is to make use of the vast reserves(儲備) of sea water in the world is to remove the salt.
Paper comes from trees. We use a lot of paper every day. If we keep on wasting so much paper, there will not be any trees left on the earth. So how can we save paper? We can use both sides of every piece of paper, especially when we are making notes. We can choose drinks in bottles instead of those in paper packets. We can also use cotton handkerchiefs(手帕) and not paper ones. When we go shopping, we can use fewer paper bags. If the shop assistant does give us a paper bag, we can save it and reuse it later.
Information card
Three kinds of main pollutions today
小題1:.
小題2:.
小題3:
A serious worldwide problem we’re going to face
小題4:
How many ways are mentioned(提到) to save paper?
小題5:

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

China is the home of tea,  has more than 4,000 years of history. People in China drink tea daily.    the three major drinks ––tea, coffee and cocoa, tea is    by the largest number of people in the world. Tea from China, along    silk and porcelain, began to be known by the world over a thousand years ago and has been an important Chinese export   .
Tea    mainly in the area south of the Yangtze River, in the provinces of Zhejiang, Jiangxi and Fujian, because of the good    and rich soil there. Longjing, Wulong, Pu’er and Tieguanyin are all      kinds of tea.
Over the past centuries, Chinese people have      their unique tea culture, which includes tea planting, tea-leaf picking, tea making, and tea drinking and so on. Tea as well as coffee    a popular topic which is often mentioned in dances, songs, poems and novels.
小題1:
A．whoB．whichC．whereD．when
小題2:
A．InB．ForC．OfD．By
小題3:
A．eatenB．playedC．boughtD．drunk
小題4:
A．betweenB．withC．exceptD．besides
小題5:
A．a(chǎn)t that timeB．from now onC．since thenD．since now
小題6:
A．producesB．growsC．makesD．lives
小題7:
A．climateB．weatherC．waterD．river
小題8:
A．famousB．importantC．interestingD．delicious
小題9:
A．likedB．gotC．becomeD．developed
小題10:
A．a(chǎn)reB．beC．wereD．is

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

閱讀短文，根據(jù)短文內(nèi)容回答問題。（共10分，每小題2分）
Confidence is very important in daily life. It can help you to develop a healthy attitude. A study shows that the people who are more confident are much happier. They can have more chance to make themselves successful. But how to be more confident? Here are some suggestions:
Speak loud   When you are not confident, you can’t do well what you want to do. You speak in a voice so low that other people can hardly hear you. Try to speak loud enough so that people can hear you clearly. The high voice can help you become more confident.
Play sports   Physical exercise makes you tired but completely relaxed. A strong body helps you be full of confidence.
Encourage yourself  Write down a list of things you did during the day to see how many things you have done well. Did you finish your homework? Did you tell a joke that made everybody laugh? Give yourself praise for the good things you’ve done.
Get rid of (消除) fear  Fear comes along with failure. But it’s easy to overcome (克服) if you know that failure is part of your life. Don’t hide your head just because you said something stupid last time. Try to start again and believe you can do better.
Pick up a hobby   If you like singing, sing as much as you can. In some ways, a hobby can make you outstanding. And it will make you happy and confident.
小題1:Is confidence important in daily life?
小題2:How many suggestions can help you to be more confident?
小題3:Which can help you be more confident, speak in a low voice or speak loud?
小題4:How can you encourage yourself?
小題5:What’s the passage mainly about?

查看答案和解析>>

同步練習(xí)冊答案