C The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial aid --- we simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink. However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard(蜥蜴)native to Central and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the water’s surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, we’ll need huge feet that we could bring up to our ears in order to create adequate “hitting.” But fortunately there is an alternative: cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a “non-Newtonian” liquid that doesn’t behave like normal water. Now if the surface of the water is hit hard enough, particles(粒子)in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick liquid of cornflour. Fun though all this may sound, it’s still rather messy and better read about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sink --- and take a shower afterward! What do we know about Basilicus basilicas from the passage
A:It is light enough to walk on water. B:Its huge feet enable it to stay above water. C:It can run across water at a certain speed D:Its unique skin keeps it from getting wet in water
Directions:
Read the
following text. Choose the best word(s) for each numbered blank and.
Strange things have been happening to
England. Still (1) from the dissolution of the empire in the
years (2) World War Ⅱ, now the English find they are not even
British. As the cherished "United Kingdom" breaks into its (3)
parts, Scots are clearly (4) and the Welsh, Welsh.
But who exactly are the English What’s left of them, with everything but the
(5) half of their island taken away Going back in time to (6) roots doesn’t help. First came the Celts, then the Romans, then Angles, Saxons, Jutes, Danes. Invasion after invasion, until the Norman Conquest. English national identity only seemed to find its (7) later, on the shifting sands of expansionism, from Elizabethan times onwards. The empire seemed to seal it. But now there’s just England, (8) of a green island in the northern seas, lashed by rain, scarred by two (9) of vicious industrialization fallen (10) dereliction, ruined, as D.H. Lawrence thought, by "the tragedy of ugliness," its abominable architecture. Of all English institutions, the one to (11) on would surely be the pub. Shelter to Chaucer’s pilgrims, home to Falstaff and Hal, throne of felicity to Dr. Johnson, the pub- that smoky, yeasty den of jollity-is the womb of (12) , if anywhere is. Yet in the midst of this national (13) crisis, the pub, the mainstay of English life, a staff driven (14) into the sump of history, (15) as the Saxons, is suddenly dying and evolving at (16) rates. Closing at something like a rate of more than three a day, pubs have become (17) enough that for the first time since the Domesday Book, more than half the villages in England no longer have one. It’s a rare pub that still (18) , or even limps on, by being what it was (19) to be: a drinking establishment. The old (20) of a pub as a place for a "session," a lengthy, restful, increasingly tipsy evening of swigging, is all but defunct. |
A:enough B:scarce C:cheap D:popular
The appeal of the world of work is first its freedom. The child is compelled to go to school: he is (21) of authority. As he grows up, he sees what it is to be free of school and to be able to choose his job and change it if he doesn’t like it. The boys and girls, (22) he has long observed, revisit school utterly changed and apparently mature. Suddenly teachers seem as out of date as his parents and the authority of school a ridiculous thing. At the moment the adult world may appear (23) the school world that the desire to enter it cannot be satisfied by exercises in school books. This may not be the (24) but it is a necessary part of growing up, for every man and woman must come sooner or later to the point of saying "Really, I’ve had enough of being taught; I must (25) ". Some young people come to this decision sooner than they ought. Yet in a way this is not a bad frame of mind to be in (26) leaving school. At work, the young man makes one of the first great acceptances of life——he accepts the discipline of the material or the process he is working with. He sees the point of it and in doing so (27) life. The work process constitutes a reality in some sense superior to that of school, and this is why he so often longs to get to grips with it. Nothing done in school imposes its will in (28) the same way; if the maths master is ill one can get on with something else. But even the boy delivering papers, (29) the driver taking out his bus, discovers that one cannot put it off because there is snow on the ground, or the foreman (工头) is easily annoyed, or he himself (30) that morning.
22()A:rather B:enough C:even D:quite
Passage Two
The men work all week in the factory, and at the end of the week they get their pay. Naturally enough, they open the envelopes and they all count the money. One man is standing in the comer. He’s counting his money. Suddenly he realizes that it is wrong. He counts the money again. No doubt about it--there is a mistake. There is too much. Five pounds too much. He puts his money carefully in his pocket and says nothing to the others. A week goes by. It’s payday again. The men ate counting their pay. The same man is standing in the comer. Suddenly he starts shouting. This time there isn’t enough money in his envelope. It’s five pounds short. He goes immediately to see the boss. He is very angry.
"Look," he says, "there isn’t enough money in my pay envelope." ’What’s right," says the boss. "But didn’t you notice last week There was a mistake. There was too much. Fiver pounds too much." "Yes, that’s right," says the man (he is very angry). There was a mistake last week. For one mistake, I can shut my eye--but for two mistakes, no, I can’t."
A:There is much more money in this envelope. B:The money is exactly what he is given. C:There isn't enough money. D:There is no money in his envelope.
Passage 2
Economically, the world can be divided
into two parts. The difference between them is that one part in poor and the
other is wealthy. In the poor countries of the world, a lot of people never get
enough to eat. In the wealthy countries, a lot of people eat too much. The
tragedy is that there are more people in the poor countries than there are in
the wealthy countries. It is estimated that about 80% of the world’s
population cannot afford to have proper food, housing or medical
care. The poorer countries are often referred to as the Third World. They have special problems. Often their land is too poor to grow anything on. The land can be improved. But a lot of things have to be done first new farming methods have to be introduced, people have to be educated, and reliable sources of water and energy have to be found. Many of these, problems are too complex for one country to solve alone. Outside help is needed, but is has to be the right kind of help. Money is not enough. Newly developed countries need to be helped to be able to help themselves. |
A:Many people have not enough money B:Many people have no place to live in C:Many people have not enough money to see doctors D:All of the above
Heart Attack In the United States, and especially in big cities and rural areas, tens of thousands of people with hearts that should be good 【51】 to keep them alive die each year for lack of adequate first aid. In New York City, for example, a new study has shown that only one person in 100 outside of hospitals 【52】 after the heart suddenly stops pumping. In contrast, in Seattle, the survival 【53】 after such heart attacks is one in five. "The difference can be traced 【54】 the effectiveness of the chain of survival", Dr. Joseph P. Ornato said. " Each link in the 【55】 must be strong enough for many lives to be 【56】 ". The chain begins with an immediate telephone 【57】 for emergency help and the start within four minutes of the process needed for restarting the 【58】 working, by a family member or bystander (旁观者). It continues with the prompt arrival-------within eight 【59】 ten minutes of a rescuer equipped with a special instrument that can shock the heart back to a normal rhythm. And it ends with the administration (给予, 实施) of advanced (先进) emergency care by nurses to maintain the heart’’s ability to survive until the doctors at the hospitals can take 【60】 When one or more links in this chain fail or function too slowly, the 【61】 of a victim surviving heart attack falls rapidly. Because of widespread weaknesses in the chain of 【62】 , experts in emergency heart care estimate that 20,000 to 80,000 people 【63】 needlessly of heart attack each year, a number comparable to the 55,000 killed annually in automobile 【64】 . One expert says, "Sending an emergency vehicle to a heart attack victim, 【65】 the special equipment is like having policemen with guns but no bullets. They may put on a good show, but they lack the weapon needed to get the job done."
A:much B:enough C:many D:too
Americans use more water than any other people in the world. If we continue to use water at the rate we do now, we will soon not have enough to meet our needs. In 1980, 40 billion gallons were used each day in the United States. In 1990, 700 billion gallons were used. The average Americans uses almost 90 gallons of water a day for personal use. And much move water is needed to make the things American people like to have. For example, it takes thousands of gallons of water to make one pound of beef for the dinner table. It takes more than 100,000 gallons of water to make a car. If we include these uses of water, the average American uses about 2000 gallons of water a day.
What is the author’s opinion ______.
A:Americans don’t have enough water. B:Americans don’t use enough water. C:Americans like to use water. D:Americans use too much water.
Passage 2 Newspapers are not only as popular today as they were in the past. There are not many people who seriously read a newspaper every day. Most people read only the sports pages, the advice or gossip columns, the comics and perhaps the classified advertisements. Most people dont take the time to read the real news. Newspaper editors say that their readers are lazy. They say they have to trick people into reading the news. They attempt to catch the readers interest with pictures and exciting headlines. These techniques are used on the front page because it is the first thing you see when you pick up the paper. The first page attracts attention and encourages the reader to look through the rest of the paper. This is why editors always look for a good first page story and headlines that make you stop and look. If the headline is horrible enough or frightening enough or wild enough, perhaps you will go on to read the rest of the story. Just the same, there are a lot of people who do not even read the front page anymore. They may read the headlines, but that is all. Then they turn to the sports page, or comics, or advertisements. It seems that people do not want the news from a newspaper anymore. They say they get the news on the television now. More people watch television news because it is easier and more interesting than reading a newspaper. What about you? Do you read news from a newspaper Do you watch the news on television Do you think it easier to get the news from television Do you listen to the radio or do you even care about news at all Would you mind if there were no news
A lot of newspaper readers do not even read the front page anymore because .()A:they don’t have time B:they are lazy C:the front page is not attractive enough D:the headines are too horrible and frightening
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