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Now in some places of our country, many people are cutting down (砍伐) the trees in the forests. They need more ? ? to build houses and more farmland to grow crops and so on. The areas of forests are getting ? . Some scientists say that there ? ? no big forests in 20 or 30 years. It is really a(n)? thing. ? ? the forests, we will have sandstorms (沙尘暴) often. The weather will get ? ? . The earth will become a big desert (沙漠). A lot of plants and animals will ? . Crops will not grow anywhere. Life will be ? for everyone.
So we should do our best ? ? our living environment and keep our mountains ? ? , the water clean, and the sky blue.
1.A. wood????????????? B. money????????????? C. deserts????????????? D. leaves
2.A. bigger and bigger B. less and less?? C. smaller and smaller????????????? D. more and more
3.A. has????????????? B. have????????????? C. will have????????????? D. will be
4.A. excited????????????? B. happy????????????? C. better????????????? D. terrible
5.A. With????????????? B. Under????????????? C. Within????????????? D. Without
6.A. wet and cold????????????? B. hot and dry????????????? C. cold and dry?? ??? D. hot and wet
7.A. come????????????? B. live????????????? C. die????????????? ????????????? D. turn
8.A. difficult????????????? B. easy????????????? C. enjoyable????????????? D. poor
9.A. protect????????????? B. to protect????????????? C. protecting????????????? D. protected
10.A. clear????????????? B. fresh????????????? C. green????????????? D. blue
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Early last month, the first American robot, Spirit, landed on Mars without any problem. Opportunity, the second robot, landed on the planet more than a week ago. Scientists are very excited about these machines’ safe landing on Mars. It means that now we have an excellent chance to look for water and other signs of life. So far, the robots have found some stones that could show Mars was once a wet and warm planet.
But the trips made by Spirit and Opportunity were dangerous. Mars is often called the “death planet”, because in the past its environment has been unfriendly to the robot explorers. Before Spirit and Opportunity, nearly forty spaceships had been sent to Mars since the 1960s. Two-thirds of them failed. The first spaceship, Korabl, sent in 1962 by Russia was among them. It broke apart (分裂) near the earth.
小题1:For a long time humans think ________.| A.they can surely find life on Mars |
| B.there may be life on Mars |
| C.it’s too late for them to explore Mars now |
| D.Mars is the only planet that has life on it |
小题2:The two robots ________.| A.have found out that it is warm and wet on Mars |
| B.were sent to Mars to find some stones |
| C.were the first two American robots that landed on Mars |
| D.are the only machines that have landed on Mars so far |
小题3:The third paragraph mainly tell us ________.| A.it’s a very hard and dangerous trip for spaceships to Mars |
| B.two-thirds of the spaceships sent to Mars have failed |
| C.Spirit and Opportunity landed on Mars successful |
| D.Mars is called the “death planet” |
小题4:From this passage we learn that ________.| A.the two robots have found water on Mars |
| B.Opportunity touched on Mars a week later than Spirit |
| C.it’s exciting to have the chance to look for signs of life on Mars |
| D.Korabl was the first Russian machine to land on Mars |
It doesn't often rain in Beijing in summer.It's very ________ and ________.
- A.wet and cold
- B.hot and wet
- C.hot and dry
- D.cold and dry
|
Although cliff diving may bring great excitement, it’s a very dangerous sport that people should be careful about. It is completely wrong to think that the diver is cushioned by the water below—this could not be further from the truth. When jumping from a cliff that is over 70 feet high, a diver hits the water at over 46 mph (miles per hour). Such high speeds make the point of contact feel like a wall, so the diving skills are very important.
Professional divers are trained and well-prepared to make dives. However, non-professionals should never dive because a diver’s body position at the time of contacting water is very important to his or her safety. Because of the great danger, divers should always seriously think about their skills before trying any moves.
Although there is no truly safe way to jump off a cliff, non-professional divers are encouraged to pencil dive. To do a pencil dive, the jumpers leap their feet first off the cliff, keep arms at their sides with legs together and pointing downward. The diver should keep the body tight and vertical. This is safer because it makes the point of contact smaller when the diver enters the water and puts less stress on the body.
Wearing a wet suit while diving will result in less pain. So it is wise for new divers to wear wet suits. But professional divers suggest staying away from water shoes. Although wearing shoes might seem like a good idea, they actually increase the force of impact because they increase the surface area of the diver at impact. The increased force of impact puts stress on a diver’s body and can lead to broken bones. Without a doubt, diving without shoes is the safer way to go.
Besides the height, speed, water depth and body position, it is also important for divers to make wise decisions when they are thinking about diving. Cliff diving tests both a person’s physical and mental skills, so it is never a good idea to jump with a sudden idea. A person needs to be of sound mind and in good health to even think about a dive. One should never try a dive if he has drunk wine. What’s more, a person should never make someone who is not feeling 100% confident dive.![]()
【小题1】What does “this could not be further from the truth” mean?
| A.There’s no doubt that this idea is definitely true. |
| B.This idea is thought to be completely wrong. |
| C.It depends on the real situation on the spot. |
| D.Nobody knows whether this idea is true or not. |
| A.Because wearing shoes can put more weight on to the diver |
| B.Because wearing shoes can cause the diver to feel uncomfortable |
| C.Because wearing shoes can make the point of contact bigger |
| D.Because wearing shoes can certainly lead to broken bones |
| A.well-prepared and skillful | B.professional and strong |
| C.creative and smarty | D.confident and brave |