单选题Tom ______ the bag as his by telling what it contained. A. identified B. recognized C. showed D. said

单选题(Since) the injury (is bad), the doctors (will operate) him (immediately).

单选题Speaker A: The biology seminar will begin on August 21st. Speaker B: So it has been set after all.______.

单选题It was considered impolite by many to discuss business on social

单选题(Never before) (he had) felt himself (so) powerfully (attracted to) the scientific ideal.A. Never beforeB. he hadC. soD. attracted to

单选题Max: My son has been admitted by Beijing University. Walt: Congratulations! He is such a smart boy. Max: ______.

单选题______ your homework and make sure that you don"t ______ any mistakes.

单选题It"s already 5 o"clock now. Don"t you think it"s about time we are going home?

单选题Not until the mid-1950s ______ most automakers begin offering seat belts as optional safety features.

单选题Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents' home in Missouri for Christmas. I stopped at a gas station (加油站) about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing in line at the cash register (收款台) I said hello to an older couple who were also paying for gas. I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend's. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card. I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful. Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I'd left the lights on all day, and the battery (电池) was dead. Then I noticed that the Friendly Ford dealership—a shop selling cars—was right next door. I walked over and found two salesmen in the showroom. "Just how friendly is Friendly Ford?" I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write to him and say thank you, and it meant a lot, he said. "Thank you" —two powerful words. They're easy to say and mean so much.

单选题What the teacher said had a great __________on his later career.

单选题(Since the beginning) of this century, more and more scientists (have become) interested (in) (the way how) the human brain

单选题I have lived in this city thirty years ago , so I know it quite well .

单选题The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth"s surface is covered with water. But about 97% of this huge amount is seawater, 1 salt water. Man can only drink and use the other 3% of the fresh water that comes from rivers, lakes, underground, and other 2 . And we cannot even use all of that, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted. However, as things stand today, this Small amount of fresh water, 3 is constantly being replaced by rainfall, is still enough for us. But our need 4 water is increasing rapidly—almost day by day. Only if we take steps to deal with this problem now 5 a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture and industry. Let me give you just one small example of 6 necessary water is to industry. Do you know that 7 a single ton of steel, it takes about 91,000 liters of water? We all have to learn how to stop 8 our precious water. One of the first steps we should take 9 to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale. The systems that have been worked out resemble 10 used in spacecraft.

单选题Mike: Hi Chris. Do you fancy going for lunch? Chris: ______ Mike: Shall we say twelve thirty? Chris: Alright, see you then. A. Yeah, I do. B. What would you say? C. Yeah, why not? D. When shall we say?

单选题The new medicine the doctor ______ for the pain in my stomach is imported and quite expensive.

单选题In most cultures, when you meet acquaintances for the first time during a day, it is normal to greet them. The main purpose of this greeting is to (56) a good relationship between the people (57) and each language usually has (58) set phrases which can be used for this purpose. Sometimes, though, there can be (59) differences in the type of phrases which can be used, and cultural misunderstandings can easily (60) . The following is a true example. A young British woman went toHong Kong to work, and at the time of her (61) she knew nothing about the Chinese culture of language. (62) her way to school one day, she went to the bank to get some money. (63) , the bank clerk asked her if she had had her lunch. She was extremely surprised (64) such a question because in the British culture it would be (65) an indirect invitation to lunch. Between unmarried young people it can also (66) the young man's interest in dating the girl. (67) this bank clerk was a complete stranger (68) the British girl, she was very much taken aback (生气), and hastily commented that she had eaten (69) . After this she (70) to school and was even more surprised when one of the teachers asked the same question. By now she (71) that it could not be an invitation, but was puzzled (72) why they asked it. (73) the following days she was asked the same question again and again. Only much later (74) that the question had no real meaning (75) —it was merely a greeting.

单选题If we had known she had planned to go abroad today, we ______ at the airport.

单选题Let's have a get—together on the weekend,______?