girl, hard-working, how, is, the(!)
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skills, learn, what, did, basic, he(?)
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computer games, don't, on, time, waste(.)
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John, may, speak to, I(?)
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根据短文内容及所给提示，补全文中单词或用所给单词的正确形式填空。
Dear Jenny,
How is everything? I hear that you feel lonely because you don't share t1. same interests with your classmates and have nothing to talk about. I'm writing to offer you some a2.. To make friends, you must be 3.(friend). Everyone likes a nice girl with a smile. So first, ask a kind question to start chatting. 4.(two), find out what interests 5. (they) and talk about that. 6. (final), talk to as many people as possible. Say hello 7. someone new. Sit with different 8. (group) of people. 9. one person doesn't want to start a conversation, find someone else to chat with. Don't just think about being lonely. Do something about it! 10. (do) things differently will help to produce different results.
Hope these will help you.
Yours,
Lucy
Many people know that rubbish is a big problem on planet Earth. What many people don't know is that junk has become a problem in outer space too.
According to BBC News, there are more than 22, 000 pieces of space junk floating around the earth. And these are just the things that we can see from the surface of the earth by telescopes (望远镜). There are also millions of smaller pieces of junk that we can't see.
Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts. If the tiniest piece of junk crashed into a spaceship, it could damage the vehicle (交通工具).
To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a U. S. satellite hit an old Russian rocket in 2009, it broke into more than 2,000 pieces, increasing the amount of space junk.
To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time. In the upper parts of the atmosphere, it will burn up.
Many scientists are also suggesting different ways to clean up space junk. In England scientists are testing a metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth's atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.
"The problem is becoming more challenging because we're sending more objects into space to help people use their mobile phones and computers," says Marco Castronuovo, an Italian space researcher.
"The time to act is now. The longer we leave the problem, the bigger it will become," he says.
1.Junk has become a problem in ________ too.
2.What would happen if the tiniest piece of junk crashed into a spaceship?
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3.Why have countries agreed that all new space tools can only stay in space for 25 years at most?
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4.找出并写下第六段的主题句
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5.将文中画线句子译成汉语。
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