单选题I can't help (to think) it (would be) fun (to play) such (an exciting) game with them.

单选题Thetroubleishereallylikesdoingitbuthe’s __________ toadmitit.

单选题But for your help, I ______ the project before the deadline.

单选题He was very rude to the customs officer, ______of course made things even worse.

单选题______ today, he would get there by Friday.

单选题There is no hurry. You can take your time ______ those exercises.

单选题In this country, our company has the _____ rights to market Elton John’s records.

单选题I wish I can fly to the moon by spaceship one day. A. can B. fly to C. by D. one day.

单选题The word "it" in the last paragraph refers to ______ .

单选题Every director needs an assistant that he can ______ to take care of problems that may occur in his absence.

单选题(A paragraph) is a portion of a text (consists of) one or more (sentences) (related to) the same ide

单选题We find that bright children are rarely held back by mixed-ability teaching.On the contrary,both their knowledge and experience are enriched.We feel that there are many disadvantages in streaming (按智力划分) pupils. It does not take into account the fact that children develop at different rates. It can have a bad effect on both the bright and the not-so- bright child. After all, it can be quite discouraging to be at the bottom of the top grade! Besides, it is rather unreal to grade pupils just according to their intellectual ability. This is only one aspect of their total personality. (76) We are concerned to develop the abilities of all our pupils to the full,not just their academic ability. We also value personal qualities and social skills,and we find that mixed-ability teaching contributes to all these aspects of learning. In our classrooms, we work in various ways. The pupils often work in groups: this gives them the opportunity to learn to cooperate, to share, and to develop leadership skills. They also learn how to cope with personal problems as well as learning how to think, to make decisions, to analyze and evaluate, and to communicate effectively. The pupils learn from each other as well as from the teacher. Sometimes the pupils work in pairs; sometimes they work on individual tasks and assignments, and they can do this at their own speed. They also have some formal class teaching when this is appropriate. We encourage our pupils to use the library, and we teach them the skills they need in order to do this efficiently.An advanced pupil can do advanced work: it does not matter what age the child is. We expect our pupils to do their best, not their least, and we give them every encouragement to attain this goal.

单选题When he was set free after twenty years in prison he was amazed ______ the changes he found.

单选题Larry: So you consider yourself an artist. Paul: Yes, in many ways. Larry: And you don"t consider yourself an engineer? Paul: ______. Some of modern engineering is necessary to good art.

单选题Yesterday the parties concerned sat together ________ several solutions to the problem.

单选题Scientists have found that there are four levels of sleep, each _____ a little deeper than the one before.

单选题Speaker A: Hi. I'd like to sign up for the film selection committee. Is this the right place? Speaker B: Yes, it is. There are a lot of fun people on that committee but you have to put in a lot of hours. ______ A. Working for the committee is not easy. B. Are you really difficult to be selected for the committee? C. I hope your schedule isn't too tight. D. The film committee is full of people.

单选题The train starts ______ 6:20, so you"d better get there before 6.

单选题Modern technology has developed in a manner which often conflicts with the environment. Nevertheless, it is possible and practical to achieve a high level of technology without altering the overall natural environment. There are two basic methods of conserving (保护)the natural environment. One is alternative technology in which techniques (such as windmills and solar energy)must be found for providing power. The other is to try to minimize the effects of modem technology by the more efficient use of materials and more effective pollution control. (79)There comes a point when the quality of life can no longer be improved because of the high population density(密度)and the largely unsuccessful attempts to meet its demands. Present energy policies of the western world are considering new energy sources to meet the demands of a growing population. The main sources used have been oil, gas, and coal--which are in limited supply--and nuclear power, which has problems concerning radioactive waste storage. Wind and solar energy are alternative possibilities, but only solar energy is likely to become a main power source for many countries. Many of the materials used daily in a technological society are destined (注定) to be discarded. Rags, paper, metal, glass, and plastics are all substances that could be recycled or reused. Research is being done to determine methods of separating useful products from industrial and domestic waste. (80) The processing of sewage (污水) requires considerable amounts of electricity. Many sewage treatment plants in the U.S. have become self- sufficient by using the methane gas(沼气) given off by sewage. This is collected in gas holders and burned to produce heat and create electricity. The solid waste itself is often used for soil enrichment.