单选题Please keep a(n) ______ on my suitcase while I go to buy my ticket.

单选题______ from heart trouble for years, Professor White has to take some medicine with him wherever he goes.

单选题Directions: There are 20 blanks in the following passage. For each blank there are four choices marked [A], [B], C．and D．on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre. Over half the world's people now live in cities. The latest "Global Report on Human Settlements" says a significant change took place last year. The report {{U}} {{U}} 1 {{/U}} {{/U}}this week from U.N. Habitat, a United Nations agency. A century ago, {{U}} {{U}} 2 {{/U}} {{/U}}than five percent of all people lived in cities. {{U}} {{U}} 3 {{/U}} {{/U}}the middle of this century it could be seventy percent, or {{U}} {{U}} 4 {{/U}} {{/U}}six and a half billion people. Already three-fourths of people in {{U}} {{U}} 5 {{/U}} {{/U}}countries live in cities. Now most urban population {{U}} {{U}} 6 {{/U}} {{/U}}is in the developing world. Urbanization can {{U}} {{U}} 7 {{/U}} {{/U}}to social and economic progress, but also put {{U}} {{U}} 8 {{/U}} {{/U}}on cities to provide housing and {{U}} {{U}} 9 {{/U}} {{/U}}. The new report says almost two hundred thousand people move {{U}} {{U}} 10 {{/U}} {{/U}}cities and towns each day. It says worsening inequalities, {{U}} {{U}} 11 {{/U}} {{/U}}by social divisions and differences in {{U}} {{U}} 12 {{/U}} {{/U}}, could result in violence and crime {{U}} {{U}} 13 {{/U}} {{/U}}cities plan better. Another issue is urban sprawl (无序扩展的城区). This is where cities {{U}} {{U}} 14 {{/U}} {{/U}}quickly into rural areas, sometimes {{U}} {{U}} 15 {{/U}} {{/U}}a much faster rate than urban population growth. Sprawl is {{U}} {{U}} 16 {{/U}} {{/U}}in the United States. Americans move a lot. In a recent study, Art Hall at the University of Kansas found that people are moving away from the {{U}} {{U}} 17 {{/U}} {{/U}}cities to smaller ones. He sees a {{U}} {{U}} 18 {{/U}} {{/U}}toward "de-urbanization" across the nation. {{U}} {{U}} 19 {{/U}} {{/U}}urban economies still provide many {{U}} {{U}} 20 {{/U}} {{/U}}that rural areas do not.

单选题Which of the following best expresses the main idea of this article?

单选题The information in this section describes the features available on Haler (海尔) air conditioners. For each feature there is an explanation of how the feature works, how to use the feature and charts for the features. The conditioner you own will not be equipped with every feature. Refer to the control panel or operating manual to identify the features of your machine.

单选题This is the reason ______ we were late for the meeting. A. for B. because C. since D. why

单选题Tom has been most helpful to us; in fact I don"t know what we ______ without him.

单选题There is no doubt that the experiment will take place as scheduled.

单选题 Education is not an end, but a means to an end. In other words, we do not educate children only for the purpose of educating them: our purpose is to fit them for life. As soon as we realize this fact, we will understand that it is very important to choose a system of education which will really prepare children for life. It is not enough just to choose the first system of education one finds; or to continue with one's old system of education without examining it to see whether it is in fact suitable or not. In many modern countries it has for some time been fashionable to think that, by free education for all--whether rich or poor, clever or stupid--one can solve all the problems of society and build a perfect nation. But we can already see that free education for all is not enough: we find in such countries a far larger number of people with university degrees than there are jobs for them to fill. Because of their degrees, they refuse to do what they think "low" work; and, in fact, work with the hands is thought to be dirty and shameful in such countries. But we have only to think a moment to understand that the work of a completely uneducated farmer is far more important than that of a professor: we can live without education, but we die if we have no food. In fact, when we say that all of us must be educated to fit us for life, it means that we must be educated in such a way that, firstly, each of us can do whatever job is suited to his brain and ability and, secondly, that we can realize that all jobs are necessary to society, and that it is very bad to be ashamed of one's work, or to scorn someone else's. Only such a type of education can be called valuable to society.

单选题______ my breakfast when the morning post came.

单选题The nervous system consists of a great number of nerves, which like the blood vessels extend to all parts of the body.

单选题In many cases, two or three hours are ______ to preview a lesson. A. informed B. required C. demanded D. inquired

单选题It was in Beijing ______ the book was published.

单选题Why! I have nothing to confess. ______ you want me to say?

单选题______ work has been done to improve the people"s living standard.

单选题It"s her very cleverness ______ makes it difficult for her to work with others.

单选题All of these improvements have ______ much.

单选题Much has been written on the virtues of natural childbirth, but little research has been done to ______ these virtues.

单选题It was because the applicant was too conceited that he failed in the interview.

单选题They always give the chance to ______ comes first.