43. The factory is trying every means to (_____)_ the wholesale price of its products.

47. In () of speed, safety and price, the hi-railway system is perhaps the world’s model 11 railway.

A. 　 terms

B. 　 case

C. 　 need

D. 　 Search

4. Passage One There are three separate sources of danger in supplying energy by nuclear power. First， the radioactive material must travel from its place of production to the power station. Although the power stations themselves are strongly built， the containers used for the transport of the materials are not. Normally， only two methods of transport are in use， namely road or rail. Unfortunately， both of these may have an effect on the general public， since they are sure to pass near， or even through， heavily populated areas. Second， there is the problem of waste. All nuclear power stations produce wastes that in most cases will remain radioactive for thousands of years. It is impossible to make these wastes nonradioactive， so they must be stored in one of the inconvenient ways that scientists have invented. For example， they may be buried under the ground， or dropped into deserted mines， or sunk in the sea. However， these methods do not solve the problem， since an earthquake could easily break the containers.
Third， there may occur the danger of a leak or an explosion at the power station. Compared with the other two dangers， this is not very likely， so it does not provide a serious objection to the nuclear program. However， it can happen. Separately， these three types of dangers are not a great cause for worry. Taken together， though， the probability of disaster is extremely high. What is this passage about?

A. Uses of nuclear power.

B. Dangers from nuclear power.

C. Public anger at nuclear power.

D. Accidents caused by nuclear power.

3. Passage Three Have you always dreamed of traveling to cool places， meeting lots of different people， and maybe picking up a language or two? No matter what country you live in， you can fly over the world’s highest waterfalls in Venezuela， learn world trade in Japan， study art in France， or take dancing lessons in Ghana. How? Join a study abroad program， where high school and college students live with a host family in a foreign country. Semester， summer， and year-long programs allow you to attend school， take intensive language courses， or perform community service in another country. Besides the excitement of travel， one reason to study abroad is that you will experience new customs， holidays， foods， art， music， and politics firsthand. “I learned the language and am now fluent， but perhaps more important was how much I learned about cultures， people， and myself. I learned this from the viewpoint of an active member of the community and my host family， not from the tourist’s point of view，” says Andrew， who studied in Poitiers， France. Another reason for studying abroad is that you’ll gain self-confidence. Christina studied in Caracas， Venezuela， a city of 10 million people and a huge change from her hometown of 35，000! Christina says she learned how to better stand up for herself and her beliefs and to express herself in another language. What could make you more confident than that? Living away from home can also help you adjust in the transition to college and adulthood. Matthew says he returned from studying in Australia with confidence， social savvy， and a genuine interest in international affairs that really set him apart from his peers. “After having gone abroad in high school， I found the transition to college to be a breeze—moving 560 miles from home didn’t seem particularly daunting after having lived thousands of miles away.” And speaking of college， improving your language skills might help you get into dream colleges and even land future jobs. Colleges and employers know that studying abroad provides leadership skills in a world that is increasingly globally interconnected. Most of all， it’s fun! You’re not likely to suffer from sophomore slump or general boredom while you’re studying in a different learning environment. From which viewpoint did Andrew learn about cultures， people， and himself?

A. From the viewpoint of a student from a different culture.

B. From the viewpoint of a curious and active person.

C. From the viewpoint of an active member of the community and his host family.

D. From the viewpoint of an active member of the host family.

4. Passage Twenty-Seven Out of all the students who enroll in a massive open online course 【MOOC】， only about 5 percent complete the course and receive a certificate of accomplishment. This statistic is often cited as evidence that MOOCs are fatally flawed (有缺陷的) and offer little educational value to most students. Yet more than 80 percent of students who fill out a post-course survey say they met their primary objective. How do we look at these two facts? We’re used to focusing on completion rates in higher education， but they’re not the only—or even the most meaningful—indicator of engagement in open online courses. With no cost to enroll， no punishment for dropping out， and little reward for actually earning a certificate， MOOCs are fundamentally different from traditional classes—and students use them in fundamentally different ways. Data from more than 1.8 million students enrolled in 36 MOOCs offered by the University of Pennsylvania show that students treat MOOCs like a buffet (自助餐)， sampling the material according to their interests and career goals. Some are curious about the subject matter and just watch one or two video lectures; others use the discussion forums to connect with their intellectual peers around the world. Of all enrolled students， nearly 60 percent watch at least one video， complete at least one assignment， or post at least once in a forum. So focusing on the tiny fraction of students who complete a MOOC is misguided. The more important number is the 60 percent engagement rate. Students may not finish a MOOC with a certificate of accomplishment， but the courses nonetheless meet the educational goals of millions. The sentence “students treat MOOCs as a buffet” (Para. 3) ( ) .

A. emphasizes the core value of MOOCs

B. demonstrates the daily operation of MOOCs

C. indicates students are free to choose MOOC resources

D. explains what students learn from MOOC courses

1. Passage Nineteen A 3-year-old boy who was lost in the woods for two days is now safe at home. But Casey Hathaway told his rescuers that he was not alone in the rainy， freezing cold woods. He said he was with a friend——abear. The child went missing on January 22 while playing with friends at his grandmother’s house in the southern state of North Carolina. When the other children returned to the house and Casey did not， the family searched the area for almost an hour before calling the police. Police formed a search and rescue team to look for the young boy in the nearby woods. But two days went by and still——no Casey. The woods of North Carolina are home to many black bears， like this one. It seems one of them helped a little boy while he was lost in the woods. Then on January 24， someone called the police saying they heard a child crying in the woods. Police followed up on the information and found Casey at about 9:30 that night. They pulled him out of some briar (荆棘). He was in good health. Police Officer Chip Hughes said that Casey did not say how he was able to survive in the woods for two days in the cloud， rainy weather， but that “he did say he had a friend in the woods that was a bear that was with him. ” Hundreds of people helped in the search and rescue efforts， including some 600 volunteers， federal police and members of the military. Hughes told reporters that at no point did he think Casey had been kidnapped (绑架). Doctors at Carolina East Medical Center treated Casey for minor injuries. He was then released to his family on January 25 . According to the passage， Casey’s missing is a case of ( ) .

A. pure accident

B. planned kidnap

C. children’s trick

D. animal attack

31. The conference (_____)_ a full week by the time it ends.

A. 　 must have lasted

B. 　 will have lasted

C. 　 would last

D. 　 has lasted

50.My sister is used to () with all the window’s open.

A. 　 sleep

B. 　 sleeping

C. 　 have slept

D. 　 the sleepingPart

4. Passage Twenty-Six Today just as technology changed the face of industry， farmers have undergone an “agricultural revolution” . On the farm of today， machines provide all the power. One of the most important benefits will be the farm computer. A few forward-looking farmers are already using computers to help them run their farms more efficiently. The computers help them keep more accurate records， so they can make better decisions on what crops to plant， how much livestock to buy， when to sell their products， and how much profit they can expect. Many computer companies have been developing special computer programs just for farmers. Programs are being written for hog (猪) producers， grain farmers， potato farmers， and dairy farmers. In the future， farmers will be able to purchase computer programs made to their needs. Because of the growing importance of computers on the farm， students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses. There can be no doubt that farmers will rely on computers even more in the future. While the old-time farm depended on horse power， and modern farms depend on machine power， farms of the future will depend on computer power. Another technological advance which is still in the experimental stage is the robot， a real “mechanized hired hand” that will be able to move and， in some ways， think like a human being. Agricultural engineers believe that computer-aided robots will make startling changes in farming before the end of the century. Unlike farmers of the present， farmers of the future will find that many day-to-day tasks will be done for them. Scientists are now developing robots that will be able to shear (修剪) sheep， drive tractors， and harvest fruit. Even complex jobs will be done by robots. For example， in order to milk their cows， farmers must first drive them into the special barn (畜棚)， then connect them to the milking machines， watch the machines， and disconnect them when they are finished. In the future， this will all be done by robots. In addition， when the milking is completed， the robots will automatically check to make sure that the milk is pure. The complete mobilization of the farm is far in the future， but engineers expect that some robots will be used before long. According to the engineers， ( ) will be done by robots in the near future.

A. most of the farm work

B. some housework

C. all farm work

D. all the work

5. Passage Twenty-One What will man be like in the future—in 5，000 or even 50，000 years from now? We can only make guesses， of course， but we can be sure that he will be different from what he is today. For man is slowly changing all the time. Let us take an obvious example. Man， even five hundred years ago， was shorter than he is today. Now， on average， men are about three inches taller. Five hundred years is relatively short period of time， so we may assume that man will continue to grow taller. Again， in the modern world we use our brains a great deal. Even so， we still make use of only about 20% of the brain’s capacity. As time goes on， however， we shall have to use our brains more and more， and eventually we shall need larger ones. This is likely to bring about a physical change to the head， in particular the forehead will grow larger. Nowadays our eyes are in constant use. In fact， we use them so much that very often they become weaker and we have to wear glasses. But over very long period of time it is likely that man’s eyes will grow stronger. On the other hand， we tend to make less use of our arms and legs. These， as a result， are likely to grow weaker. At the same time， however， our fingers will grow more sensitive because they are used a great deal in modern life. But what about hair? It will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future， then， both sexes are likely to be bald. Perhaps all this gives the impression that future man will not be a very attractive creature to look at. This may well be true. All the same， in spite of all these changes， future man will still have a lot in common with us. He will still be a human being， with thoughts and emotions similar to our own.The reason for behaving that future man will be different is that he ( ) .

A. is quickly changing

B. hopes for a change

C. never stops changing

D. will live a different life

1. Passage Twenty-Two Though some people have suggested that women should return to housework in order to leave more jobs for men， the idea has been rejected by both women and men in public opinion polls (民意测验). Lately some union officials have suggested that too many women are employed in type of work more suitable for men and that women should step aside to make way for unemployed young men. They argue that women—especially women in their childbearing years actually delay economic development and result in lower productivity， poor quality and inefficiency. To solve the problem， they have suggested that the working women stay at home while their husbands or brothers were given double wages. They argue that under these circumstances， families would retain their same level of income， and women could run the house and raise children much better. The suggestion has been rejected by 9 out of 10 people polled. A hundred persons in a big city were questioned last summer. Out of 50 women， 46 said they were unwilling to leave their jobs， no matter what the situation was. The other 4 said they would like to return home if their jobs could be taken by their sons or daughters. Of 50 men polled， only 6 said they would like to see their wives give up their jobs， if it meant higher wages for themselves. Some other people have suggested another way called “phased employment theory” . The theory suggests that a woman worker take leave from her job when she is seven months pregnant (妊娠) and stay off the job until her baby reaches the age of 3. It suggests that women on leave receive 75 percent of their normal salary and be allowed to return to work after the 3-year period. This will benefit children， women， their families and the society. Some of those polled， both women and men， felt the idea is a good one. It definitely seems to be more acceptable than the suggestion that women return to home forever. Some union officials have suggested that women should return home because ( ) .

A. all of them are employed in unsuitable types of work

B. most skilled male workers are now unemployed

C. their participation in work has a bad influence on the economic development

D. nowadays no one can take care of children except women