单选题Up to now,nothing__________Betty．1 want to know the reason__________he hasn’t written to me．

单选题—Do you mind if I ______ the TV a bit? —Yes, I do, because I'm busy with my homework now. A. turn on B. turn up C. turn down D. turn off

单选题Eating better and eating less could be the ______ not only to avoiding cancer but also to living longer. A. key B. foundation C. rule D. importance

单选题The writer cites the Duomo in the last paragraph as an example to illustrate that ______.

单选题Most of his spare time ______ spent in reading. A. are B. were C. was D. have been

单选题Even though the conference is not for another eight weeks, we have decided to begin marking the necessary ______ now. A. arranged B. arrangements C. arranging D. arranges

单选题Could you tell me something what I haven't known?A. CouldB. tellC. whatD. haven't

单选题Most people were deep moved by this film. A. Most B. deep C. by D. film

单选题Trees should only be pruned (修剪) when there is a good and clear reason for doing so and, fortunately, the number of such reasons is small. Pruning involves cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the trees to grow in their own ways. First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut out diseased or dead wood, or branches that are rubbing against each other and thus causing wounds. The health of a tree may be encouraged by removing the branches that are locking up the centre and so preventing the free movement of air. One result of pruning is that an open wound is left on the tree and this provides an easy entry for diseases, but it is a wound that will heal (愈合). Often there is a race between the healing and the disease as to whether the tree will live or die, or that there is a period when the tree is at risk. It should be the aim of every gardener to reduce the risk as far as possible. It is essential to make the area which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hours and then paint it with one of the substances available from garden shops produced especially for this purpose. Pruning is usually done in winter, for then you can see the shape of the tree clearly without the interference (妨碍) from the leaves and it is, too, very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.

单选题Don’t forget the day___________you were received into the Youth League．

单选题Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born a hundred years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birth rates, that has led to the population explosion.Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, whereas if the parents survived they could have another child. In most contemporary (当代的) societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people; unless they have wealth or private or government insurance, they must often go on welfare if they have a serious illness.When older people become senile or too weak to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent (康复的) hospitals have been built. These are often profit-making organizations, although some are sponsored (赞助) by religious and other nonprofit groups. While a few of these institutions are good, most of them are simply dumping grounds for the dying in which care is given by poorly paid, overworked, and under-skilled personnel.

单选题Beavers have the {{U}}aptitude{{/U}} to build dams. A. appetite B. desire C. competence D. attitude

单选题He was a brilliant organizer and positively bubbled with ideas.

单选题The settlement is home to nearly 1000 people, many of ______ left their village homes for a better life in the city.

单选题Hitchhiking When I was in my teens (十几岁) and 20s, hitchhiking was a main form of long-distance transport. The kindness or curiosity of strangers 1 me all over Europe, North America, Asia and southern Africa. Some of the lift-givers became friends, many provided hospitality 2 the road. Not only did you find out much more about a country than 3 traveling by train or plane, but also there was that element of excitement about where you would finish up that night. Hitchhiking featured importantly in Western culture. It has books and songs about it. So what has happened to 4 ? A few years ago, I asked the same question about hitchhiking in a column on a newspaper. 5 of people from all over the world responded with their views on the state of hitchhiking. "If there is a hitchhiker"s 6 it must be Iran," came one reply. Rural Ireland was recommended as a friendly place for hitchhiking, 7 was Quebec, Canada. "If you don"t mind being berated (严厉指责) for not speaking French." But while hitchhiking was clearly still alive and well in many parts of the world, the 8 feeling was that throughout much of the west it was doomed (消亡). With so much news about crime in the media, people assumed that anyone on the open road without the money for even a bus ticket must present a danger. But do we 9 to be so wary both to hitchhike and to give a lift? In Poland in the 1960s, 10 a Polish woman who e-mailed me, "the authorities introduced the Hitchhiker"s Booklet. The booklet contained coupons for drivers, so each time a driver 11 somebody, he or she received a coupon. At the end of the season, 12 who had picked up the most hikers were rewarded with various prizes. Everybody was hitchhiking then." Surely this is a good idea for society. Hitchhiking would increase respect by breaking down 13 between strangers. It would help fight 14 warming by cutting down on fuel consumption as hitchhikers would he using existing fuels. It would also improve educational standards by delivering instant 15 in geography, history, politics and sociology.

单选题Muriel All is the landlord of a__________brownstone apartment building in Brooklyn．

单选题The most {{U}}crucial{{/U}} problem any economic system faces is how to use its scarce resources. A.puzzling B.difficult C.terrifying D.urgent

单选题They agreed to settle the dispute by peaceful means.

单选题This offer（ ）your acceptance before the end of this month

单选题Try to make your report as（ ） possible: only give us the facts, and not your options