All living things on the earth need other living things to live. Nothing lives alone. Most animals must live in a group, and even a plant grows close together with others of the same kind. Sometimes one living thing kills another, one eats and the other is eaten. Each kind of life eats another kind of life in order to live, and together they form a food chain(食物鏈).Some food chains are simple, while others are not. But all food chains begin with the sun, and all food chains become broken up if one of the links disappears.
All life needs sunlight to live on. But only plants can use sunlight directly. Plants are“factories”.They make food from sunlight, water and things in the soil and air.
Plants feed all other living things. Animals can only use the sun’s energy after it has been changed into food by plants. Some animals feed directly on plants, others eat smaller animals. Meat-eating animals are only eating plants indirectly.
What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, fruits and so on. We also eat meat and drink milk. But men often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them cannot be eaten. If men eat the fish, they will get strange diseases.
Each form of life is linked to all others. Breaking the links puts all life in danger. 
小題1:How does every living thing on the earth live?
A. Each plant can live alone.
B. Each animal can live alone.
C. Every living thing on the earth cannot live without others.
小題2:Which living things can use the sun’s energy directly?
A. Animals      B. Plants         C. All living things
小題3:Who often break up the food chains?
A. Human beings
B. Animals
C. Plant and animals
小題4: Which of the following do you think is the best title of this passage?
A. Animals         B. Plants       C. Food Chains    
小題5:Where can you probably find this passage?
A. In a news report.
B. In your textbook.
C. In a business magazine.

小題1:C
小題1:B
小題1:A
小題1:C
小題1:B

1. C 根據(jù)All living things on the earth need other living things to live 及Nothing lives alone可知任何事物都不是單獨(dú)存在的,故選C。
2. B 根據(jù)第二段But only plants can use sunlight directly可知是植物,選B。
3. A 細(xì)節(jié)題考題,從But men often break up the food chains可知是人類,故選A。
4. C 歸納題。文章不單是講動物和植物,而說是整個的生物鏈,A,B只是文章一個方面,故選C。
5. B 推測題。文章講生物鏈,不可能來自A新聞,也不可能來自C商業(yè)雜志,故最有可能來自你的教科書,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:閱讀理解

Cooking and Learning
In this E-book package, we have four e-books.

Fun with Food
This fun e-book is filled with
exercises --- photo tests,
word exams, riddle games,
coloring pages and exercises
on learning more about food.

小題1:Kids can ________ by reading Fun with Food.
A.do science experimentsB.get cooking experience
C.cook well in the kitchenD.play some riddle games
小題2: ________ has over sixty pages.
A.Fun with Food B. Kids Cooking Lessons E-Book
C.Food Facts E-BookD.Kids Food Science Experiments
小題3:Kids Cooking Lessons E-Book is popular because ________.
A.there is a unit for each age groupB.there are a lot of photo tests in it
C.kids can learn more about scienceD.each part is very easy to print off

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

We kids have different ways to get in touch with each other now. And for the old, they’d like to go to the market or     26      each other’s houses, but for the young, we kids needn’t follow the     27     of doing so.
The easiest way for us to get in touch and make    28     is to use the Internet services, like QQ. A lot of websites such as www.qq.com have     29    in the last few years and offered such kinds of     30     for free. So we can make friends    31     through the Internet. Maybe we do not    32    all these “friend” well. We add friends only    33    we seem cooler with more friends online.
Then how do we kids keep in touch with friends online? We make it by posting our     34      to each other. At times , “friends”     35     “be missing” for months without a message. Is this the friendship in the 21st century?
Of course, using these Internet services is not     36    for saying “ Hi, what’s up?” Some of us have found long-lost classmates and friends     37    these websites. And at times we     38  a time to go to a movie or get together. What’s more, we kids can      39     our friends’ favourite music when we are on the Internet.
Believe it or not, these Internet services will be    40     for a while, and it is really a convenient way for us to keep in touch.
小題1:
A.visitB.enjoyC.likeD.build
小題2:
A.chancesB.thoughtsC.waysD.plans
小題3:
A.quarrelsB.friendsC.sentencesD.jokes
小題4:
A.goneB.hadC.turnedD.a(chǎn)ppeared
小題5:
A.computersB.servicesC.booksD.rooms
小題6:
A.easilyB.loudlyC.a(chǎn)ctuallyD.early
小題7:
A.learnB.knowC.hearD.teach
小題8:
A.ifB.whenC.becauseD.how
小題9:
A.moneyB.paperC.positionsD.messages
小題10:
A.mustB.willC.mayD.shall
小題11:
A.a(chǎn)lreadyB.a(chǎn)lsoC.justD.yet
小題12:
A.throughB.forC.ontoD.into
小題13:
A.spendB.killC.fixD.last
小題14:
A.listen toB.hear fromC.look atD.feel like
小題15:
A.difficultB.popularC.dangerousD.polite

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

We are learning English, but how can we learn English well? A student can know a lot about English, but maybe (可能)he can not speak English.
If you want to know how to swim, you must get into the river. And if you want to be a football player, you must play football.
So, you see, you can learn English only by using it. You listen to your teacher in class. You must read your lessons every day. You must speak English to your classmates and you must write in English,too. Then one day, you may find your English very good.
(     ) 12. You know a lot about English but maybe you ______.
A. can’t speak it                    B. can write it     
C. can’t study it                   D. can use it
(     ) 13. You must get into the river ______.
A. to learn how to swim            B. to play with water     
C. to go boating                  D. to catch a fish
(     ) 14. Do you want to be a football player? Please ______.
A. put your football away        B. buy a good football    
C. play football                 D. watch others play football
(     ) 15. How can we learn English well?
A.We must have a good English book.
B.We must have a good English teacher.
C.We must see more English films.
D. We must use it often.

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

For several years, Americans have enjoyed teleshopping—watching TV and buying things by phone.Now teleshopping is starting in Europe (歐洲).In a number of European countries, people can turn on their TVs and shop for clothes, jewelry, food, toys, and many other things.
Teleshopping is becoming popular in Sweden, for example.The biggest Swedish company sells different kinds of things on TV in 15 European countries, and in one year it made $100 million.In France there are two teleshopping channels, and the French spend about $20 million a year to buy things through these channels.
In Germany, until last year teleshopping was only possible on one channel for 1 hour every day.Then the government allowed (允許) more telepshopping.Other channels can open for telebusiness, including (包括) the largest American teleshopping company and a 24?hour teleshopping company.German businessmen are hoping this new teleshopping will help them sell more things.
Some people like teleshopping because it allows them to do their shopping without leaving their homes.With all the problems of traffic in the cities, this is an important reason.But at the same time, other Europeans do not like this new way of shopping.They call teleshopping “junk (垃圾) on the air”.Many Europeans usually worry about the quality (質(zhì)量) of the things for sale on TV.Good quality is important to them, and they believe they cannot be sure about the quality of the things on TV.
The need for high quality means that European teleshopping companies will have to be different from the American companies.They will have to be more careful about the quality of the things they sell.They will also have to work harder to sell things that the buyers cannot touch or see in person.
小題1:Teleshopping is ____ in Europe.   
A.not popularB.growingC.not possibleD.cheap
小題2:People like teleshopping because it is ____ .
A.AmericanB.cheaperC.easier D.more popular
小題3:Some Europeans don’t like teleshopping because they ____ .
A.don’t like to buy things
B.don’t watch TV
C.believe the things sold on TV are expensive
D.think the things sold on TV are bad quality
小題4:In Germany, teleshopping may ____ .
A.help businessmen get more moneyB.keep the shops open longer
C.have fewer buyersD.bring better TV programmes
小題5:The best title of this passage is ____ .
A.American TeleshoppingB.Teleshopping Companies
C.Teleshopping in EuropeD.Teleshopping—Junk on the Air

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

Sometimes you may not understand your parents. One minute they are friendly, the next minute they’re shouting and screaming loudly enough for the whole street to hear. So who makes them so____16___ ? You, probably!
Is your room untidy? Do you leave things on the floor? You may find it hard enough to keep one room tidy. So imagine what ___17___like for your mum and dad trying to keep a whole house in order.
When you take your clothes off, remember to ___18__. Get into the habit if taking glasses and plates down to the kitchen. Before long you’ll be doing it without thinking.
Even though you may not realize it, your parents have bought you many clothes. But they’re not buying themselves new things every week, are they? The simple truth is that there are more ___19___ things to spend money on, like the electricity bill and food.
You may hate missing a party to visit some boring old relatives. They may go on and on about what a sweet baby you were. You have no choice but to listen. Even if you ___20____, your parents won’t change their minds. Parents like to show off their family. The best thing you can do is to help entertain(使……高興) your relatives. Your parents will be so pleased with you afterwards that they’ll probably allow you to go to the next two ___21____.
You might not want to eat, but think of it from the parents’ point of view. If you cook two meals a day, it ___22____ 730 meals a year. Can you imagine how boring this can get? Imagine how your parents feel when you say you’re not really hungry. ___23____, your parents are probably worried that you aren’t eating enough.
Eat ___24___ snacks and leave room for your meals. Finally, offer to ___25___after the meal. Your offer may not be accepted, but your parents will be pleased.
小題1:
A.friendlyB.lonelyC.changeable D.comfortable
小題2:
A.it’sB.itC.they’reD.that’s
小題3:
A.hang them upB.leave them alone
C.put them onD.throw them away
小題4:
A.interestingB.difficultC.important D.surprising
小題5:
A.a(chǎn)greeB.complainC.listenD.win
小題6:
A.concertsB.meetingsC.classesD.parties
小題7:
A.takesB.costsC.spendsD.means
小題8:
A.In addition(加之)B.In return
C.At mostD.At last
小題9:
A.moreB.lessC.fewerD.many
小題10:
A.do the cookingB.lay the table
C.buy some snacksD.wash the dishes

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion . There are a lot of people to feed. We need more  and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic(遺傳的) material. Foods from plants grown in this way are called genetically modified(改變的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice is being prepared , for example , which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are,. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people , then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.
小題1:GM foods are made by                 
A. farmers            B. workers      C. scientists          D plants
小題2:What are the good things about GM foods  ?
A. They make plants strong against diseases.   B. They are unnatural.
C. They can help in human diseases.            D  Both A and  C.
小題3:GM foods        .
A. are a quick way to produce food    B. grow in the wild 
C. are safe                           D are grown only in rich countries
小題4:Why do some people not like GM foods?
A. They are not useful.       B. They are not helpful.
C. They are not natural.      D  They are not cheap.
小題5:From the passage we know that      .
A.GM foods will disappear one day in the future
B.GM foods will not disappear in the future
C.People will not be interested in GM foods.
D.People will have to stop using GM foods

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Liu Xu is a student from a middle school in Guangxi. Once he was riding home when a  robber (盜賊) suddenly jumped out from the roadside. He pulled Liu Xu off his bike and rode away. Liu Xu was scared, but he didn’t run after the robber. He found a telephone and called the police at 110.
“Safety is the first important in such a situation,” Liu said, remembering what his teacher had told him in his first aid class. “It is not safe to run after an adult who is stronger than you.”
Liu’s school has compulsory (必修的) first aid education. Students must take the class once a week.
Teenage safety has become a serious issue recently. According to a survey, about 16,000 teenagers die in accidents in China every year.
At Liu’s school the first aid classes are to “teach students skills how to protect and save  themselves in emergencies (緊急情況)”. Students there often learn by role-playing in first aid classes. For example, one student performed as a stranger knocking at a door. Another one stood inside the door and asked several questions before letting the “stranger” in. Then they changed roles and did it again. They learned a lot while having fun at role-playing.
The topics of the first aid classes are regularly updated (適時(shí)的). The students have learned skills for surviving in earthquakes. The teacher also taught the students not to go out at night. If someone tried to do bad things to them, they should quickly run into crowed place.
小題1: Liu Xu’s _________ was robbed according to the passage.
A.moneyB.bikeC.backpackD.mobile phone
小題2:What did Liu Xu remember when he met the robber?
A.Safety is the first important.B.How to run away from an earthquake.
C.To run after the robber quickly.D.Not to go out at night.
小題3:Students in Liu’s school must have compulsory first aid class __________.
A.once a dayB.twice a dayC.once a weekD.twice a week
小題4:The underlined word “stranger” is __________ here.
A.a(chǎn) robberB.a(chǎn) studentC.a(chǎn) teacherD.a(chǎn) real stranger
小題5:The best title for the passage is __________.
A.Teenage SafetyB.A Robbery (搶劫)
C.Importance of SafetyD.Life-saving Classes

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

Maybe you are more interested in sports than in history. You probably think you will never be a top student.    31   , anyone can become a better student if he or she wants to. If you can use your time well, you may  32 your study without much work. Here’s how:
  33  your time carefully. You should make a   34   of things that you have to do. First write down the time for eating, sleeping, dressing, etc. Then decide on a good time for studying. Of course, studying shouldn’t take all of your time. Don’t    35   to leave yourself enough time for hobbies.
Find a good place to study. Look around the house    36   a good study place. Keep this space. It may be a desk or just a corner of your room. N0     37   , radio, or television! When you sit down to work, think only about the     38   !
Make good use of your time  39  . Listen carefully to what the teacher says. Careful listening means   40   work after class. You also need to take notes, because it can make it easier for you to learn well.
These are only some of the ways to help you with your studying. I believe you’ll find more other ways besides these.
小題1:
A.In factB.For exampleC.At leastD.As usual
小題2:
A.a(chǎn)ffectB.findC.improveD.own
小題3:
A.TakeB.MakeC.PrepareD.Plan
小題4:A. change     B. choice        C list          D. wish
小題5:
A.wantB.forgetC.decideD.hope
小題6:
A.withB.inC.a(chǎn)tD.for
小題7:
A.booksB.pensC.gamesD.tapes
小題8:
A.subjectB.placeC.timeD.way
小題9:
A.a(chǎn)fter classB.in classC.a(chǎn)t homeD.a(chǎn)t school
小題10:
A.moreB.lessC.mostD.least

查看答案和解析>>

同步練習(xí)冊答案