【正文】 or everyone to know the ______________( 重要 ) of wetlands. 3. Every year, lots of （旅行者）go to the small town to watch birds.. 4. （麻雀） are small and lovely animals. 5. The Chinese Government is trying best to protect endangered（瀕危的） （野生生物）.B）用括號(hào)里所給單詞的正確形式填空。）( A )A crow(烏鴉) is about twenty inches(英寸) long and black all over. Crows are dirty birds because they live on bad food. Crows eat a lot of waste food. In this way they are more useful to us than any birds. They clean up the dirty things in our streets. Crows are always hungry. They look for food all day, and in the evening you can see them in large numbers flying back to their nests(巢) in the trees. They sleep there at night.Crows are much noisier than other birds. Very often a large number of crows will get together on one house and talk. Sometimes they talk together, and sometimes they do it by turns(輪流) like human beings(人類). It is easy to tell(判斷) from crow’s sound if they are pleased or angry. Perhaps crows talk a lot because they are friendly birds. A pair of crows will live together all their lives, and if one of them dies, the other one bees very sad and quiet for the rest of its life and some time later it dies too.( ) 1. Crows “l(fā)ive on bad food” means “ _________ ”. A. Crows eat old bad food. B. Old bad food is crows’ nests. C. Crows make their nests on old bad food. D. Crows sleep on old bad food.( ) 2. Crows are more useful to us because they ________________.A. are clean birds B. can move away waste food C. can make our streets clean D. aren’t dirty( ) 3. Crows always look for food _________. A. in the evening B. all day C. in the morning D. at night( ) 4. People can’t hear crow talk __________. A. together B. by turns C. noisily D. quietly( ) 5. If a pair of crows loves each other, ________ A. they will not live together. B. neither of them can live alone happily.C. they will die D. one of them will die( B )Death Valley, an area in Nevada and California, is one of the most famous deserts in the United States. Almost 20 percent of this area is below sea level. Badwater, a salt water pool, is about 280 feet below sea level and it is the lowest point in the United States.Long ago, the Panamint Indians called this place “Tomesha”—the land of fire. The present name, Death Valley,can date back to 1849, when a group of miners became lost in it and their adventure turned out to be a sad story. Today Death Valley has bee a National Monument (遺址) and is crossed by several roads where good services can be found easily. Luckily the change created by human has hardly destroyed the special beauty of this place.Here there are a lot of surprising natural scenes. One of the most surprising and variable (多變的) parts of Death Valley is Devil’s Golf Course, where it seems hard for people to tell reality from terrible dreams. Sand sculptures (沙雕) stand on the frightening ground, as evening shadows (暮色) move and lengthen.( )6. _______ is the lowest place in the United States.A. Tomesha B. Death Valley C. Nevada D. Badwater( )7. The name of the valley es from _______.A. an Indian name B. the death of the miners C. the local people D. a National Monument( )8. From the passage,we can learn that _______.A. no one had ever known the desert before the miners went thereB. it is still not easy to travel across the desert C. people can be provided with good services in the desertD. people have changed the natural sights of the desert( )9. Devil’s Golf Course is famous for _______.A. a lot of sand B. evening shadows C. dreamlike sights D. the sand sculptures( ) can say that the writer _______ Death Valley according to the passage.A. enjoys B. is frightened of C. dislikes D. is tired of（C）If you do not use your arms or your legs for some time, they will bee weak, when you start using them again, they slowly bee strong again. Everybody knows that. Yet many people do not seem to know that memory works in the same way.When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory is poor, he really means that he does not give it enough chance to bee strong.If a friend says that his arms and legs are weak, we know that it is his own fault. But if he tells us that he has a poor memory, many of us think that his parents may be blamed(責(zé)備), and few of us know that it is just his own fault. Have you ever found that some people can’t read or write but usually they have better memories ? This is because they cannot read or write and they have to remember things, they cannot write them down in a small notebook. They have to remember days, names, songs and stories, so their memory is the whole time being exercised.So if you want to have a good memory, learn from the people: practise remembering things in a way as other people do.（ ） can’t have a good memory if ________.A. he can’t read or write B. he doesn’t use his memoryC. his parents haven’t a good memory D. he doesn’t use his arms or legs for some time（ ）12. If you do not use yo