The earth is about 4,600 million years old. Modern man has lived on the earth for only 35,000 years, but during that time, we have changed our planet in many ways. Many of the things that we have done are good, but more are not good for the earth.
Water pollution
A lot of people, birds and fish die each day because of water pollution. Factories have polluted the land and the water. As a result, many rivers and lakes are now dead.
Air pollution
In big cities, factories, as well as cars, trucks and buses are the main cause of air pollution. Many people in cities now have serious health problems. For example, Mexico city used to be a beautiful sunny capital, but today it is always covered by thick brown clouds.
oil pollution
In order to have a good harvest, most of the farmers use chemicals too much in their fields. That’s bad for the soil. But this kind of pollution is difficult to stop.
Hope for the future
These problems are very serious for our future, so all of us should do something to improve our environment. If we can stop pollution, our planet will become more and more beautiful and our health will be better. Let’s be greener people!_____ have made the earth change a lot.
| A．Human beings | B．Animals |
| C．Plants | D．People in other planets |
There are _____ kinds of pollution in this passage.
| A．two | B．three | C．four | D．five |
Pollution isn’t a big problem now, is it?
| A．Yes, it is. | B．No, it isn’t. |
| C．Yes, there is. | D．No, there isn’t. |
Which sentence is NOT right according to the passage?
| A．Because of water pollution, many rivers and lakes are now dead. |
| B．We must stop the factories from pouring waste water into the rivers and lakes. |
| C．Most of things that we have done are good for our planet. |
| D．Water pollution is very serious nowadays. |
Which sentence is RIGHT?
| A．Though Mexico city is always covered by thick brown clouds, it’s still a beautiful sunny capital. |
| B．Air pollution can make people sick. |
| C．Now fewer farmers use chemicals in the fields. |
| D．Factories, cars, trucks and buses are the main cause of soil pollution |
判断正误 阅读下面的材料，判断下列句子是否符合短文内容．符合的填涂"T"，不符合的填涂"F"．（T＝True， F＝False）
Bird flu is a kind of serious disease caused by poultry（家禽）． It's also called H7N9． People that catch this illness may first feel like having a common cold． It was reported that 106 people in China got H7N9last year and 20 of them died． This year，H7N9 attacked many provinces again， such as Hunan， Fujian， Yunnan， etc． In some places， many markets that sold poultry were closed， and some poultry were even killed， burned and buried（掩埋）． People were afraid to eat chicken and duck． Here are some suggestions to avoid bird flu．
★Keep away from animals like chickens， ducks and so on．
★Cook the food fully， especially poultry and eggs．
★Wash hands with soap after touching poultry．
★Go to a doctor the minute you feel like having a cold．
（1）Bird flu is not a kind of serious disease．
（2）When people catch H7N9， they will have a nosebleed．
（3）Many markets that sold poultry were closed because of bird flu．
（4）Poultry and eggs must be fully cooked．
（5）If you touch a chick， you should wash your hands at once．
It was a sunny summer day and I walked back home after school． When I stood in front of the door， I was shocked to find that the key had disappeared from my pocket． It was a disaster for me， because I only had one key and my parents were gone for several days．
I walked around the community， hoping to find the lost key． But I couldn't find it． I called my mum and she told me to go to my aunt's home． My aunt lives in another building of our community． I was sad， but I had no choice． The next morning， when I was going to school， I saw something shining on the window of the security hut （保安亭）． It was my key． "Unbelievable!" I was quite surprised as I held the key in my hands．
"Is that yours， kid？" the old guard asked．
"Yeah． I lost it yesterday． Who sent this？" I replied． The old man said， "I don't know， someone picked it up last night．"
To pick up a key from the ground and take it to the security hut is not something special， but it meant so much to me． I cannot express my thanks to the person who found my key． But I can pass on his or her kindness by following his or her steps to help others．
61． How many keys did the writer have？
62． Were the writer's parents at home or away from home？
63． Whom did the writer stay with for the night？
64． Did the old guard know who picked up the key？
65． What lesson does the passage give us？
On Dec． 28， a small satellite （卫星） was launched （发射） into space from Taiyuan， Shanxi． It was big news for students at Beijing Bayi School． After all， they designed the satellite．
With the help of space scientists， more than 30students built this satellite （12cm long， 11cm wide and 27cm tall）． This is the first satellite designed and built by middle school students in China．
This August， the school worked with the China Center for Aerospace Science and Technology Ingternational Communications （CCASTIC 中国航天科技国际交流中心） and started the satellite program． It allowed space experts to teach students about basic knowledge of satellites．
After several months of hard work， students designed their own satellite． Their main achievement was the design of the satellite's functions （功能） in space． "We worked together and came up with more than 10ideas． But after tests and experiments， we settled on four，" Zhu Xun， 16， told Beijing Evening News．
Indeed， they have to consider the weight of the satellite． The satellite will stay in space more than 180days． Its functions include taking pictures of Earth， radio communication and sending information to Earth． The students hope that the satellite can take photos of smog， typhoons （台风） and another weather conditions．
The students were divided into five groups． The group members worked closely to make satellite models． "Every time we think the satellite we are designing will fly into space， we are so excited and try to do experiments，" said Shen Shulang， 17． They also visited the Chinese Academy of Sciences and other organizations to get inspiration （灵感）．
51． designed the small satellite．
A． Students from Beijing Bayi School
B． Some space scientists
C． Some space experts
52． The satellite can NOT ．
A． take pictures of EarthB． send information
C． predict the weather
53． The underlined words "settled on" means in Chinese．
A． 计算
B． 确定
C． 总计
54． helped the students build the small satellite．
A． The school B． Space scientists C． CCASTIC
55． What's the main idea of this passage？
A． The first student﹣designed satellite was launched into space．
B． Space experts taught the students about the basic knowledge of satellites．
C． Students visited some science organizations to get inspiration．
The sun is always shining．But it can only shine on one side of the earth at one time．When the sun is shining on one side of the earth，it is night on the other side．At night，you can see the stars．The stars are in the sky all day．But the light from the sun is so bright that you can't see them．When night comes，there is no light，and the stars are bright enough to see．The stars look very small．But some of them are even bigger than the sun．They look small because they are so far away from you．Big things look much smaller when they are far away．The sun is closer to the earth than other stars，so it looks bigger．
（1）Can the sun shine on only one side or two sides of the earth at one time？
（2）Are the stars in the sky all day？
（3）When are the stars bright enough to see？
（4）How do big things look when they are far away？
（5）Why does the sun look bigger than other stars？ ．
Do you like traveling？Here is some advice．
●Always wear your most comfortable clothes when going on long journeys．
●Traveling on trains or buses can be boring，so take a good book to read．
●If you are going somewhere sunny，remember to wear sunblocks（防晒霜）and sunglasses．
●Always take a camera with you to capture those special moments．
●Be careful with your things whenever you go to busy places，like a train station．There are often thieves there．
●Most countries have lower prices for students，so if you have one，take your student card with you and save money．
●If you travel abroad，remember to take your passport，Whatever you do，don't lose it!
（1）If you go to Hainan Island for a trip in summer，you should take with you．
A．some fruit and drinks
B．warm clothes and sports shoes
C．sunglasses and sunblocks
（2）According to the passage， is a good way to keep away from boredom（单调）．
A．reading a good book
B．taking a camera
C．listening to music
（3）You must always because there are often thieves at some busy places．
A．put your things down
B．look after your things well
C．take few things with you
（4）If a student shows to the shop assistant，he can buy some presents at lower prices while traveling．
A．his things
B．his passport
C．his student card
（5）The underlined word"capture"in this passage means ．
A．感受
B．拍摄
C．控制．
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