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1 ? Animals are natural resources. People have wasted these resources all through our history(合并句子).
Animals have been killed for ? 2 ?(they) fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the world forever. Hundreds more are ? 3 ?(介词) the danger list today. About 170 kinds in the United States alone are considered in danger.
Why should people care?? 4 ? Because we need animals and because once they are going, there will never be any more.(改正错误)
Animals are more than just beautiful and ? 5 ?(interest).They are more than just a source of food. Every animal has its place in the balance of nature.? 6 ?(Destroy) one kind of animal can create many problems.
For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice. Why?? 7 ?(连词) hawks eat rats and mice. With no hawks to ? 8 ?(动词短语) their numbers, the rats and mice multiplied(繁殖)quickly.
Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals ? 9 ?(介词短语).
Quite a few countries have passed laws. These laws forbid (禁止) the killing of any animals or plants on the danger list. Slowly,? 10 ?(冠词) number of some animals in danger is growing.
查看习题详情和答案>>仔细阅读下面的短文，短文中有10个空格或画线句子。请按照每小题括号内的具体要求完成语法填空、词形变化、句子合并、句子改写以及病句改正等。
Electronic mail(e-mail) 1 (start)in the late 1960s by the U．S．military．By the 1980s, academics in a number of fields were using e-mail for professional collaboration．The early 1990s 2 (see)an explosion of the use of e-mail and other computer networking tools for a wide range of professional, academic, and personal purposes．
E-mail is a way of 3 (send)a message from one computer to one or more other computers around the world．First, you 4 (短语动词)the e-mail address of the person you are sending the message to．Then you write the message, or 5 (direct)in a special e-mail software program or first in a word processing program and transfer it into the e-mail software．You should push a button 6 a simple command to send the message．The computer system you are connected to will break the message up into tiny pieces and send them 7 (electronic)to the destination．The pieces might travel numerous routes through other computers on the way．Usually within 2-3-minutes, the pieces will all arrive at their destination, where the 8 (receive)computer will reassemble them into a message．The person 9 the message can check his or her mailbox at a 10 (convenience)time and read the mail．
阅读下面短文，根据上下文填入适当的词语，或使用括号中词语的适当形式，并将答案填写在1～10的相应位置。
Electronic mail(e-mail) 1 (start)in the late 1960s by the U．S．military．By the 1980s, academics in a number of fields were using e-mail for professional collaboration．The early 1990s 2 (see)an explosion of the use of e-mail and other computer networking tools for a wide range of professional, academic, and personal purposes．
E-mail is a way of 3 (send)a message from one computer to one or more other computers around the world．First, you 4 (短语动词)the e-mail address of the person you are sending the message to．Then you write the message, or 5 (direct)in a special e-mail software program or first in a word-processing program and transfer it into the e-mail software．You should push a button 6 (give)a simple command to send the message．The computer system you are connected to will break the message up into tiny pieces and send them 7 (electronic)to the destination．The pieces might travel numerous routes through other computers on the way．Usually within 2～3 minutes, the pieces will all arrive at their destination, where the 8 (receive)computer will reassemble them into a message．The person 9 (receive)the message can check his or her mailbox at a 10 (convenience)time and read the mail．
With his attention________on the shops along the roadside，he knocked an old man down while riding to school.
A concentrating B．concentrated C．to concentrate D．concentrates
答案 B
解析 考查词组，故选B项。
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| 短语辨析。 从方框里选择正确的短语，并用其正确的形式填空。 | |
2. Acting before thinking always _____failure. 3. He couldn't ______ the noise so he kept the windows shut all day long. 4. We met something unhappy, but _____,we enjoyed our stay there. 5. _____ you keep away from them, they won't do you any harm. 6. _____ I_____ clean all the rooms or just this one? 7. Believe in us. We will back you to the end _____ you fail. 8. If you know a foreign language you can tell your foreign friends about your family, study_____. 9. I wish you wouldn't ____interrupting me. 10. The lawyer spoke_____ his client(当事人)． |