单选题Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are ______ off. A. avoided B. excluded C. screened D.separated

单选题I doubt if I will come to listen to his speech next time. It couldnt have been ______ in fact. A．any worse B．so bad C．any better D．so good

单选题She showed him the photo she ______ the day before. A. has taken B. took C. was taking D. had taken

单选题If I had remembered ______ the window, the thief would not have got in. A. to close B. closing C. to have closed D. having closed

单选题The room was full of people and smoke. She started to feel ______ with the heat inside

单选题 To live in a first tier city or not is a question for many people, especially college graduates. It has been intensely discussed in recent years. The following are the supporters' and opponents' opinions. Read carefully the opinions from both sides and write your response in no less than 200 words, in which you should: 1. summarize the opinions from both sides, and then 2. give your view on the issue. Marks will be awarded for content relevance, content sufficiency, organization and language quality. Failure to follow the above instructions may result in a loss of marks. YES NO The first tier cities have more dynamic economies. It means more job opportunities there than in second or third tier cities. There are more brand new streets, large avenues, upper end estates, malls with international brands and more chances to enjoy first-class services and programs, so the life could be really colorful. There are more prestigious higher educational institutes and universities in first tier cities. At first, talented people all went to first tier cities where there was higher production efficiency and more job opportunities, but with rapid economic development, big cities have become increasingly crowded and competitive. Living costs have also become unbearably higher. In recent years, many second tier and third tier cities have achieved rapid progress in their economies, infrastructure constructions, city management and environments. Therefore, the gap between the first tier and second-third tier cities is narrowing.

单选题The man ______ the Helping Hand Group is a handicapped person himself.

单选题The people from Alton were ______.

单选题It"s vital that enough money ______ collected to get the project started.

单选题The accused man ______ his innocence by proving that he was aboard when the murder was committed.

单选题One of the most eminent of psychologists, Clark Hull, claimed that the essence of reasoning lies in the putting together of two 'behavior segments' in some novel way, never actually performed before, so as to reach a goal. Two followers of Clark Hull, Howard and Tracey Kendler, (21) a test for children that was explicitly based on Clark Hull's principles. The children were given the (22) of learning to operate a machine so as to get a toy. In order to succeed they had to go through a two-stage (23) . The children were trained on each stage (24) . The stages consisted merely of pressing the correct one of two buttons to get a marble; and of (25) the marble into a small hole to release the toy. The Kendlers found that the children could learn the separate bits readily enough. (26) the task of getting a marble by pressing the button they could get the marble; given the task of getting a toy when a marble was handed to them, they could use the marble. (All they had to do was put it in a hole.) (27) they did not for the most part 'integrate', to use the Kendlers' terminology. They did not press the button to get the marble and then (28) without further help to use the marble to get the toy. So the Kendlers concluded that they were incapable of deductive (29) . The mystery at first appears to deepen when we learn, from (30) psychologist, Michael Cole, and his colleagues, that adults in an African culture apparently cannot do the Kendlers' task either. But it lessens, (31) when we learn that a task was devised which was (32) to the Kendlers' one but much easier for the African males to handle. (33) the button-pressing machine, Cole used a locked box and two (34) colored match-boxes, one of which contained a key that would open the box. Notice that there are still two (35) segments--"open the right matchbox to get the key" and "use the key to open the box"--so the task seems formally to be (36) But psychologically it is quite different. Now the subject is dealing not with a strange machine but with familiar meaningful objects; and it is clear to him what he is meant to do. It then (37) that the difficulty of integration is greatly reduced. Recent work by Simon Hewson is of great interest here for it shows that, for young children, (38) , the difficulty lies not in the (39) processes which the task demands, but in certain perplexing features of the apparatus and the procedure. When these are changed in ways which do not at all affect the inferential nature of the problem, then five-year-old children solve the problem (40) college students did in the Kendlers' own experiments.

单选题Can't you speak more ______ to your parents? A) respectably B) respectingly C) respectively D) respectfully

单选题Like any teenagers, the face of One Teen Story is changing fast. Just a year old,the monthlymagazine of short fiction for young people is getting a new editor-in-chief: Patrick Ryan ,47, the asso-ciat

单选题If a book has seven or more new words on each page, a reader who wants to practice reading speed ______ .

单选题In most American cities, the rent for a one-bedroom apartment was $250 or more per month in recent years. In some smaller cities such as Louisville, Kentucky or Jacksonville, Florida the rent was less, but in larger cities it was more. For example, if you lived in Los Angeles, you had to pay $400 or more to rent a one-bedroom apartment, and the same apartment rented for $625 and up in Chicago. The most expensive rents in the U. S. were in New York City, where you had to pay at least $700 a month to rent a one-bedroom apartment in most parts of the city. Renters and city planners are worried about the high cost of renting apartments. Many cities now have rent control laws to keep the cost of renting low. These laws help low-income families who cannot pay high rents. Rent controls in the United States began in 1943 when the government imposed rent controls on all American cities to help workers and the families of soldiers during World War Ⅱ. After the war, only one city—New York—continued these World War Ⅱ controls. Recently, more and more cities have returned to rent controls. At the beginning of the 1980s, nearly one fifth of the people in the United States lived in cities with rent-control laws. Many cities have rent-control laws, but why are rents so high? Builders and landlords blame rent controls for the high rents. Rents are high because there are not enough apartments to rent, and they blame rent controls for the shortage of apartments. Builders want more money to build more apartment buildings, and landlords want more money to repair their old apartment buildings. But they cannot increase rents to get this money because of the rent-control laws. As a result, landlords are not repairing their old apartments, and builders are not building new apartment buildings to replace the old apartment buildings. Builders are building apartments for high-income families, not low income families, so low-income families must live in old apartments that are in disrepair. Builders and landlords claim that rent-control laws really hurt low income families. Many renters disagree with them. They say that rent control is not the problem. Even without rent controls, builders and landlords will continue to ignore low-income housing because they can make more money from high-income housing. The only answer, they claim, is more rent controls and government help for low-income housing.

单选题About fifty million Americans are active in ______ is called fitness walking. A. that B. which C. what D. something

单选题The new campus is ______ as the old one. A．twice as big B．as twice big C．twice big D．big as twice

单选题When a dog has received effective obedience training, its owner______.

单选题The defense computers calculate way to ______ the enemy missiles.