[單選題]()of them knew about the plan because it was secret.

　　ASome

　　BAny

　　CNo one

　　DNone

　　參考答案：D

　　[單選題]The baby usually()three times a night.

　　Ahas woken up

　　Bis waking up

　　Cwill wake up

　　Dwakes up

　　參考答案：D

　　[單選題]David has decided______football at the end of this season.

　　Agive up

　　Bgiving up

　　Cto give up

　　Dhaving given up

　　參考答案：C

　　[單選題]—I usually travel by train.

　　—Why not() by plane for a change?

　　Ato try going

　　Btrying to go

　　Cto try and go

　　Dtry going

　　參考答案：D

　　[單選題]His report on the space exploration was really().

　　Aexciting

　　Bexcited

　　Cexcitement

　　Dexcitedly

　　參考答案：A

　　[單選題]John was()he lay down for an hour before dinner.

　　Aso tired as

　　Bso tired that

　　Ctoo tired that

　　Dtoo tired so

　　參考答案：B

　　[單選題]About 70 million Americans are trying to lose weight. This is almost one out of (21)threepeople in the United States. Some people go on diets (節(jié)食). This (22) they eat less of certainfoods, especially fats and sugars.(23)people exercise with special equipment, take medicine, (24)even have surgery (手術(shù)). Losing weight is hard work, and it can also cost a lot of money. So (25)do so many people in the United States want to lose weight? Many people in the UnitedStates are (26)for looking young and pleasant. To many people,(27)good means being thin.

　　Other people worry about their (28). Many doctors say being overweight is unhealthy. But areAmericans really (29)?

　　Almost (30)million Americans weigh at least 20 percent 30than their proper weight.

　　(31),the United States is the most overweight country in the world. "The stored (32)of adultAmericans weight 2,300 million pounds," said an American scientist. He said (33)off that stored energy would produce enough power for 900,000 ears to go 12,000 miles.(34)losing weight ishard work, many people want to find a fast and easy (35)to take off fat.

　　第(27)題選()。

　　Abeing

　　Blooking

　　Ceating

　　Dacting

　　參考答案：B

　　[單選題]Deep inside a mountain near Sweetwater in East.Tennessee is a body of water known as the Lost Sea.It is listed by the Guinness Book of Would Records as the world's largest underground lake.The Lost Sea is part of an extensive and historic cave system called Craighead Caverns.

　　The caverns have been known and used since the days of the Cherokee Indian nation.The cave expands into a series of huge rooms from a small opening on the side of the mountain.Approximately one mile from the entrance,in a room called”The Council Room,”many Indian artisfacts have been found.Some of the items discovered include pottery,arrowheads,weapons,and jewelry.

　　For many years there were persistent rumors of a large underground lake somewhere in a cave,but it was not discovered until 1905.In that year,a thirteen-year-old boy named Ben Sands crawled through a small opening three hundred feet underground.He found himself in a large cave half filled with water.

　　Today tourists visit the Lost Sea and ride far out onto it in glass-bottomed boats powered by electric motors.More than thirteen acres of water have been mapped out so far and still no end to the lake has been found.Even though teams of divers have tried to explore the Lost Sea,the full extent of it is still unknown.

　　The Craighead Caverns have been known().

　　Athrough history

　　Bsince the time of the Indian nations

　　Csince 1905

　　Dsince divers explored them

　　參考答案：B

　　[單選題]

　　It may be pointed out that warfare(戰(zhàn)爭) as practiced by man has no parallel in nature ,This is to say that within the more highly developed animal populations of this earth, there is not now. nor has there been similar destruction within a species(物種) itself. In fact ,one has to go to the lowliest forms of animal life, such as certain kinds of ants, to find anything comparable to human warfare. It is a curious fact that mankind appears to give the killing of his own kind a good reason by imaging that it is a "law of nature". There are now a lot of wrong ideas about the laws of nature, of which this is one of the most incorrect and fateful(致命的). Political beliefs have been based upon it with results that have come near to destroying human civilization. The theory that war is a biological necessity. that it is nature´s method of controlling population and believing in the survival(生存) of the strong and the elimination(滅亡) of the weak, is totally wrong and insupportable. Within the last century. when wars have been common all over the world ,the human population of the earth has almost doubled.

　　According to Sentence 2 ,which of the following is true?

　　AThe destruction is similar to the killing of each other within human beings.

　　BThere is not the similar destruction now, but it occurred before. ,'

　　CThere is never a time when we may see the similar destruction.

　　DThe destruction is now a thing of the past.

　　參考答案：C

　　[單選題]

　　When did you last see a polar bear? On a trip to a zoo ,perhaps? If you had attended a winter activity in New York a few years ago, you would have seen a whole polar bear club. These" Polar Bears" are people who-meet frequently in winter to swim in freezing cold water. That day, the air temperature was 3oC,and the water temperature was a bit higher. The members of the Polar Bear Club at Coney Island, New York are usually about the age of 60. Members must satisfy two requirements. First, they must get along well with everyone else in the group. This is very important because there are so many different kinds of people in the club. Polar Bears must also agree to swim outdoors at least twice a month from November through February.

　　Doctors do not agree about the medical effects of cold-water swimming. Some are worried about the dangers of a condition in which the body´ s temperature drops so low that finally the heart stops. Other doctors, however, point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.

　　The Polar Bears themselves are satisfied with the benefits (or advantages)of cold-water swimming. They say that their favorite form of exercise is very good for the circulatory system(循環(huán)系統(tǒng)) because it forces the blood to move fast to keep the body warm. Cold-water swimmers usually turn bright red after a few minutes in the water. A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.

　　The main benefits( or advantages)of cold-water swimming are probably mental. The Polar Bears love to swim year-round; they find it fun and relaxing. As one 70-year-old woman says,"When I go into the water, I pour my troubles into the ocean and let them float away. "

　　Doctors

　　Aencourage people to take part in cold-water swimming actively

　　Bpoint out the possible danger of blood illness during cold-water swimming

　　Cbelieve swimming is helpful both in winter and in summer

　　Dhave different ideas about the medical effects of cold-water swimming

　　參考答案：D

2021年成人高考高起點(diǎn)考試題庫|手機(jī)做題

限時(shí)優(yōu)惠購買

　　2021年成人高考題庫章節(jié)練習(xí)、每日一練、模擬試題、歷年真題，掃描下方二維碼獲取【焚題庫小程序】免費(fèi)試做。