单选题Constant showers are characteristic ______ the summer here. A. for B. to C. of D. with

单选题All the machines ______ by the end of the following week.

单选题If you (read) the book (a second) time, (and) you will probably have quite a different understanding of the events (described in it).

单选题______ seriously ill, you ought to go back to see her.

单选题Of the two lectures, the first was by far the best one, partly because the person who delivered it had such a pleasant voice. A. the first B. the best C. it D. such a

单选题I didn't know which was the better, so I took them______ A. all B. each C. none D. both

单选题W: Have you decided what to give your son for Christmas yet? M: ______

单选题He was old ______ quite strong.

单选题The children were (surprised) when the teacher (had them) (to close) their books (unexpectedly).A. surprisedB. had themC. to closeD. unexpectedly

单选题Speaker A: I"d like to fix an appointment with the personal manager. Will nine tomorrow morning be all right? Speaker B:

单选题How can we get rid of garbage? Do we have enough energy sources to meet our future energy needs? These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the same time it can save the land to hold garbage. For a long time, people buried garbage or dumped (倾倒) it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil (化石) fuels. As we use up our fossil fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam that is produced is used to make electricity or to heat nearby buildings. In Paris, France, some power plants burn almost 2 million metric tons of the cities garbage each year. The amount of energy produced is about the same as would be produced by burning almost a half million barrels of oil. Our fossil fuel supplies are limited. Burning garbage might be one kind of energy source that we can use to help meet our energy needs. This method could also reduce the amount of garbage piling up on the earth.

单选题If you (were to) ask Jim what (did he) with (his) money, he would have difficulty (remembering).A. were toB. did heC. hisD. remembering

单选题Last weekend lots of T-shirts were ______ here and the cheapest cost only one dollar.

单选题While (shopping), people sometimes can"t help (persuading) into (buying) something they don"t really (need).

单选题He failed in his exam, ______ proves that he hadn"t worked hard enough.

单选题Computers have many uses today. Computers can solve difficult (56) and control complex machines. Many people use small computers (57) calculators to add, subtract, multiply, and divide (58) quickly. Scientists use large computers to solve many problems at the same (59) . You can play (60) with computers, and some computers can help you (61) languages. The Kurzweil Reading Machine is a special (62) of computer. It can read books for blind people The Kurzweil machine consists (63) three parts: a scanner, a computer, and a voice synthesizer (合成器). These (64) parts are like your eyes, your brain, (65) your voice. The scanner is (66) "eye" of the machine. It scans or looks at the words on the page of a book and (67) them into digital signals. These digital signals then (68) to the computer, the "brain" of the machine. The computer analyzes the (69) and recognizes the words. The computer (70) information about the words to the voice synthesizer. The voice synthesizer makes the sounds of the words. To use the machine, a blind person simply (71) the book and puts its face down on the scanner (like a photocopy machine). The machine "reads" the words on the page. When one (72) is finished, the blind person turns the page and puts the book on the scanner (73) . The Kurzweil machine can read (74) a normal voice or in a special fast voice. It can read words (75) small letters, large letters, or italics.

单选题This is one of ______ beautiful places in this city.

单选题Nora hardly (never) misses (an) opportunity (to play) (in) the tennis tournaments.