On Sunday , April 22nd , people all over the world take time out to appreciate the earth that we all share .It’s Earth Day , a special day to learn about our planet and how to take care of it .
On Earth Day , some people listen to speeches about the environment . Others help clean up their offices or save water and electricity at home .Your parents may even decide to take a day off from driving their cars .
The idea for Earth Day came from a U.S. Senator(参议员) . He was worried about pollution and the health of plants and animals . And the idea quickly caught on (流行起来) . In 1970 , the first Earth Day was celebrated . More than 20 million people in cities all over the U.S. took part in it .Since then, Earth Day has been used to educate people about their roles in taking care of our planet .
Now , Earth Day has become a worldwide celebration. In 1990, two hundred million people from 140 countries took part in clean-ups , tree planting and other environmental events on  Earth Day .  
小题1:Earth Day is a special day to learn about our planet and          .
A.how to pay attention to the earth
B.how to learn English
C.how to go to the moon
D.how to make use of time
小题2:On Earth Day , we are told to           .
A.go shopping
B.save water and electricity at home
C.listen to music
D.drive our cars
小题3:The idea for Earth Day was given by a __________ from America .
A.farmerB.teacherC.scientistD.senator
小题4:According to the passage ,the first Earth Day was celebrated in____________ .
A. 1990, the U.S.A.              B. 1970, Beijing
C. 1970, America                D. 1990, America
小题5:Why has Earth Day become a worldwide celebration ? Because __________.
A.Earth Day is on Sundays .
B.we can sing songs on Earth Day
C.there are so many people on Earth Day
D.Earth Day can teach people how to take care of our planet
阅读下面短文,把方框中的句子还原到文中,然后完成第五小题。(每题1分,共5 分)
If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet (彗星).
  A comet sometimes looks like a star.  ____小题1:____ It shines from the sunlight it reflects (反射). Like the earth, a comet goes round the sun, but on a much longer path (轨道) than the earth travels.
If a comet isn’t a star, what is it then?
   Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. ____小题2:______ These clouds, together with the dust, form a long tail.
Many people perhaps have seen a comet. _____小题3:_____ .There may be millions of comets, but only a few come close enough for us to see.
An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky.  ______小题4:____  . Others keep coming back at regular times. A big comet that keeps coming back was named after Halley because he was the one who worked out when it would come back again. Maybe you have ever seen Halley’s Comets because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley’s Comets when it comes near the earth again.
A. However no one knows how many comets there are.
B. Some comets move out of our sight and never come
C. Like a planet, a comet has no light of its own.
D. When sunshine melts (融化) the ice in the comet, great clouds of gas go trailing after it.
小题5:Which of the following is not true?
A.A large part of a comet is ice, iron and rock dust
B.Some comets keep coming back at any time
C.Halley’s Comets came back in 1986
D.Maybe many people have seen a comet
If you want to find out a piece of information about anything , the best place to search for it is Wikipedia(维基百科). This online encyclopedia is written by thousands of people around the world. Anyone can add or change the information if he or she finds it not correct or not well written. In this way, people who know a lot about a certain subject can write about it even if they are not university professors.
What is more, Wikipedia includes articles written in about 235 languages. This fact makes it one of the few websites (网站)on the internet that are truly international. It was started in 2001 by Larry Sanger and Jimmy Wales, as a free online English-language encyclopedia project. By April 2008, over 10 million articles had been put on Wikipedia. A quarter of the articles are in English. Wikipedia is also a place where people can find the latest news.
However, Wikipedia has its own problems. There have been many complaints that some of the information on Wikipedia is not accurate(准确的)and some important subjects are not included. This has led to arguments between the writers of articles. The people running Wikipedia say that the accuracy of the information is improving and that it is one of the top 20 visited websites on the internet.
So, if you are looking for some information, why not try Wikipedia?
小题1:Wikipedia is ___________. 
A.a computer gameB.an online magazine
C.a free universityD.a website encyclopedia
小题2: People who write on Wikipedia__________.
A.know much about a certain subject
B.likes writing different stories
C.should be university professors
D.are usually famous scientists
小题3:Wikipedia is truly international because_________.
A.everything is written in English
B.the articles are in about 235 language
C.there are over 10 million articles
D.each writer can write in Various languages
小题4:Besides information about different subjects, people can also__________ on Wikipedia.
A.watch interesting moviesB.send e-mail to friends
C.read about the latest newsD.play exciting games
It may seem easy to say that plants and animals are different. Any child can tell the difference between  a tree and a dog. But those differences are far deeper than just what they look like. The cells (细胞) that plants are made up of are different. In other words, the cell wall of plants has something special.

First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is  like.
The cell wall of a plant is on the outside of the cell membrane (膜). It is usually hard and cannot be bent easily, but the degree of flexibility (韧性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than  cells on a leaf.
Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell.  More importantly, they control the water  that goes in and out.  Plants must have good water controlling systems (系统), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so  being able to control water is very important.
So there you have it , what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell wails requires further study and research.
小题1:From the first two paragraphs we can find that _____.
A.all plants have a ceil wall
B.plant cells and animal cells are the same
C.different kinds of plant have different cell walls
D.there are no differences between the cells of a tree and a dog
小题2:The underlined word "bent" in the passage is the closest in meaning to _____.
A.变形的B.防水的C.太阳灼伤的D.表皮破损的
小题3:Cells in the trunk of a tree are _____ those on a leaf.
A.as flexible asB.not so flexible as
C.more important thanD.less important than
小题4:What is the most important use of a plant cell wall?
A.To protect the plant.B.To provide support.
C.To move chemicals and wastes.D.To control the water.
We students enjoy our school life, but sometimes we feel unhappy.It’s every student’s       dream. At the       of every term, we have six exams.
Last week, I finished my final exams. The math exam was the easiest one of all. Most of the problems were from early exams,so I       it soon. The biology exam was hard. The questions were so difficult       I had to guess the answers to them. And there wasn’t enough       to check every answer. But after the exam, my teacher said I did well in it.
In the computer exam, we had a lot to do. I thought I needed more time, but some of my classmates didn’t think      . They just wrote down the answers quickly and then       games.I didn’t think I could get a good mark in the English exam because it was a little difficult       me and I didn’t work hard enough at English.
In our school, we can       some elective courses (选修课). That means students can learn these courses by       and then take the exam. If they pass, they don’t have to have these courses any more.
Now, I am very glad that all the exams are over. The summer holiday is coming and I will enjoy it.
小题1:A. bad                   B. good                C. interesting
小题2:A. middle                 B. beginning               C. end
小题3:A. gave                      B. finished                C. passed
小题4:A. if                        B. that                    C. until
小题5:A. time                      B. idea                    C. people
小题6:A. also                  B. so                      C. too
小题7:A. made                   B. played                  C. got
小题8:A. for                      B. at                      C. of
小题9:A. go                     B. teach                   C. take
小题10:A. themselves            B. them                    C. they
Do you ever feel a stomachache during a test? Are you ever so worried about something that you even have a headache or can’t sleep at night? If so, then you know what stress is. Stress is what you feel when you are worried about something. You may feel angry, sad, scared, or afraid —all this can give you a stomachache or a headache.
There are different kinds of stress. Some kinds of stress are good and others are bad. Good stress may happen when someone asks you to answer questions in class or when you have to give a report. This kind of stress can help you to finish things better.
However, bad stress can happen if the stress lasts too long. You may not feel well if a family member is sick, if you’re having problems at school, or if anything else makes you upset every day. That kind of stress isn’t going to help you.
The best way to keep stress away is to have a balanced life. If you get enough sleep and food, and if you exercise and leave time for fun, you’ll feel less stress.
小题1:What’s the main idea of the first paragraph?
A.How can you pass a test?
B.Why do you have a stomachache?
C.What is stress?
D.Why are you worrying?
小题2:Good stress may happen when you’re doing the following things EXCEPT _______.
A.answering questions in class
B.having problems at school
C.helping other classmates
D.giving a report in front of school
小题3:The underlined word “upset” means _______ in the passage.
A.boringB.unhappyC.inexpensiveD.successful
小题4:Which of the following is RIGHT, according to the passage?
A.Having a balanced life is the best way to keep stress away.
B.Different kinds of stress will help you with the study a lot.
C.You may feel angry, sad, or afraid when you’re doing something.
D.You may not feel well if your parents are talking about things.
小题5:What is the best title for this passage?
A.A Balanced LifeB.How to Do Better in a Test
C.Bad Stress and Good StressD.How to Face Your Stress
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn't eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays(现在), the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It's bad for people's health. So it's our duty to make everyone full and make everyone healthy.
小题1:            know about food most according to the passage.
A.FarmersB.CooksC.ScientistsD.Doctors
小题2: Scientists think the most important thing about food is             .
A.how to cookB.when to eat
C.what to eatD.how often to eat
小题3: Which of the following statements(陈述) is NOT true?
A.Every day, we should eat some vegetables.
B.All the people in the world have enough food to eat.
C.Many people are eating unhealthy food.
D.Everyone is needed to help solve (解决) the two problems.
小题4:            is not good for our health.
A.WaterB.BreadC.MilkD.Junk food
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