In the past ten years, Wambugu has spent much of her time studying sweet potatoes, which are an 
a crop virus| 完形填空 | ||||
| In Britain，people have different attitudes to the police.Most people generally __1__them and the job they do-although there are certain people who do not believe that the police should have the power that they do. What does a policeman actually do? It is not a(n) __2__job to describe.After all，a policeman has a number of jobs in one.A policeman often has to control traffic，either on foot in the center of a town，or in a police car on the roads.Indeed，in Britain，he might be in the Traffic Police and spend all，or a lot of， his time __3__up and down main roads and motorways.A traffic policeman has to help keep the traffic moving，stop __4__motorists and help when there is an accident. A policeman has to help keep the __5__，too.If there is a fight or some other disturbance，we __6__ the police to come and restore order.And they often have to __7__situation at great risk to their own __8__. We expect the police to solve crimes，of course，so an ordinary policeman，__9__he is not a detective，will often have to help __10__and arrest criminals. And who do we call when there is an emergency-an air crash，a __11__，a road accident，or a robbery? We call the police.So a policeman has to be __12__to face any unpleasant emergency that may happen in the __13__world. The police do an absolutely necessary job.They do it __14__well and I support them，but I do not envy policemen.I do not think that I could __15__do the job of a policeman. | ||||
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longer life, 
are 5 most important habits for a better life:
n by many researchers that people who sleep 7 hours per day enjoy a happier | 完形填空 Get Yourself Lost Travelers to new cities are often told to start their trip with a bus tour.The thinking is that they can then __1__to the places that interested them.Nonsense! What you see from the __2__of a moving bus is unreal and completely removed from the authentic sights,sounds and __3__outside. Be adventurous! The best way to experience any place is __4__ and with absolutely no travel __5__. Simply go wherever your feet and your __6__ lead you.You eventually will get to the same sites that are on the bus tour-the museums,the monuments city hall-but will have __7__much more.You will have felt the contemporary life of the city. "But what if I get lost?" People might ask.No one gets __8__ lost in a major city.Eventually,you can find your way back to a wellknown location.If it frightens you to be "lost",just find a taxi and go back to where you __9__.However,the nicest things can happen if you get lost.You stop at a sidewalk caf? to __10__ and relax.You ask instructions of the local people at the __11__ table.And even if they don't speak your language,your trip becomes more __12__because of the experience. So next time you see a poster advertising an introductory bus tour,__13__your money.__14__,wander on your own.I __15__you a time you'll remember with great pleasure. | ||||
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e behind that fog was land1.Why didn't Florence swim across the Catalina Channel for the first time?
A.Because she was too tired to go on swimming.
B.Because the fog was so thick that she lost heart at the sea.
C.Because she couldn't see her goal:the land.
D.Because the sea water too cold to bear.
B.Because the fog was so thick that she lost heart at the sea.
C.Because she couldn't see her goal:the land.
D.Because the sea water too cold to bear.
2.What does "She never had..." mean?
A.She had never been so desperate.
B.She had never thought of giving it up.
C.She had never seen such thick fog.
D.She had never swum across the strait before.
B.She had never thought of giving it up.
C.She had never seen such thick fog.
D.She had never swum across the strait before.
3.Which of the following is NOT true?
A.Florence Chadwick spent less time to swim across the Catalina Channel than any man.
B.Florence Chadwick succeeded in swimming across the Catalina Channel in September,1952.
C.People had to use guns to drive away some flesh-eating fish in the sea.
D.No women but Florence Chadwick were able to swim across the English Channel in both directions.
B.Florence Chadwick succeeded in swimming across the Catalina Channel in September,1952.
C.People had to use guns to drive away some flesh-eating fish in the sea.
D.No women but Florence Chadwick were able to swim across the English Channel in both directions.
4.Which of the following is the best title?
A.Keep Your Goals in Sight
B.Swim Across the Catalina Channel
C.The Fog Defeated Her
D.Set a Goal for Yourself
B.Swim Across the Catalina Channel
C.The Fog Defeated Her
D.Set a Goal for Yourself
heir children leave home
of course you'll be pleased to see them go, " she 
that________.| 完形填空。 | ||||
| It's no secret that many children would be healthier and happier with adoptive parents (养父母) than with the parents that nature dealt them. That's especially 1 of children who remain in homes where they're badly treated 2 the law blindly favors biological parents. It's also true of children who 3 , for years in foster (寄 养) homes because of parents who can't or won't care for them but 4 to give up custody (监护) rights. Fourteen-year-old Kimberly Mays 5 neither description, but her recent court victory could 6 children who do. Kimberly has been the object of an angry custody battle between the man who 7 her and her biological parents, with whom she has never 8 . A Florida judge decided that the teenager can 9 with the only father she's ever known and that her biological parents have "no legal right" on her. Shortly after 10 in December 1978, Kimberly Mays and another baby were mistakenly switched and sent home with the 11 parent. Kimberly's biological parents received a child who died of a heart disease in 1988. Medical tests 12 that the child wasn't their own daughter, but Kimberly was, thus leading to a custody 13 with Robert Mays. In 1989, the two families 14 that Mr. Mays would continue to have custody with the biological parents getting 15 rights. Those rights were ended when Mr. Mays decided that Kimberly was being 16 . The decision to 17 Kimberly with Mr. Mays caused heated discussion. But the judge made 18 that Kimberly did have the right to sue (起诉) on her own behalf. Thus he made it clear that she was more than just a 19 possession of her parents. Biological parentage does not mean an absolute ownership that cancels (取消) all the 20 of children. | ||||
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