3. Smoking can be . (harm) to your health.
科目：高中英语 来源： 题型：
For many years,people have wondered whether we are the only living things in the universe. Some scientists believe that there must be 1on other planets because the universe is so big. 2.other scientists don' t think so,because plants 3 a very specific environment for life to 4. There are facts that 5 both sides of the argument.
On the one hand,the universe is 6 . There are billions of stars and thousands of solar systems (太阳系) .Many of these solar systems have pjanets that go round and round a sun like Earth
7 there are so many pl^iets in space,it is 8 that one of these planets could have theright conditions needed for life. Recently,experts found 54 planets similar to Earth. They 9 that one of these planets has the 10 atmosphere (大气层) and temperature needed for life. 11 in our solar system,scientists have found 12 of water on Mars. They believe that this could 13 that there is,or was,a form of very simple life on these planets.
On the other hand,a planet needs very special 14 to have life. A planet would need to have water,the right temperature and the right mix of (化学物质) in the atmosphere.
In addition, 15 scientists believe that life might exist on other planets,we have never found evidence to 16 it. A recent report 17 that it is very unlikely that there is life on other planets. They believe we don't have enough evidence to 18 whether there is life on other planets.
in conclusion(综上所迷) ，i do not 19 that there is life on other planets. I do not think that any other planets could have 20 the same conditions as Earth. Therefore,I do not think that there could be life on other planets.
1. A. wonder B. life C. water D. air
2. A. . Besides B. So C. However D. Then
3. A. need B. provide
C. create D. protect
4. A. continue B. spare C. start D. save
5. A. cause B. develop
C. win D. support
6. A. beautiful B. huge C. dark D. open
7. A. Because B. If C. When D. While
8. A. strange B. likely C. important D. hard
9. A. realize B. hear
C. believe D. remember
10. A. right B. wet C. clear D. heavy
11. A. Just B. Soon C. Yet D. Even
12. A. pictures B. bottles
C. evidence D. plenty
13. A. find B. mean C. answer D. add
14. A. places B. chances
C. attentions D. conditions
15. A. although B. unless
C. as D. until
16. A. improve B. study
C. collect D. prove
17. A. doubts B. suggests
C. changes D. expects
18. A. ask B. guess
C. decide D. discover
19. A. agree B. know C. imagine D. forget
20. A. always B. only C. simply D.exactly
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科目：高中英语 来源： 题型：
Yash Gupta
Yash Gupta has worn glasses for many years. When they broke one day and he was not able to wear them to school,he had a big problem. 36 At the end of the day,he realized that he had learned nothing that day!
Yash quickly got his glasses fixed,but his experience changed his life. He realized that there were probably many kids around the world that did not have proper glasses to help them learn in school. 37 He found out that 13 million children around the world don't have proper glasses to help them see in class. Instead of just shaking his head at this problem,he decided to do something about it. 38 Its goal is to help find glasses for other kids and teens that need them.
He created Sight Learning in 2011 and since then he has changed the lives of thousands of young students around the world!The organization has tried to provide eyeglasses to students who need them but cannot afford them. It has collected and given away、over $1,000,000 worth of eyeglasses. 39
As Dr. Seuss,a famous writer,once said, "Unless someone like you cares a whole awful lot,nothing is going to get better. It's not." 40 He has taken action to not only improve his own life,but those of others.
A. Yash is stich a teenager.
B. So,he did some research.
C. Yash started a small organization,Sight Learning.
D. Here is an easy way to help Yash and Sight Learning.
E. He could not see much of what was going on in his classroom.
F. He learned that not having glasses can cause a 20% loss in learning!
G. This has helped over 20 ,000 young people in 5 countries to see better!
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