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A:Hello! May I speak to Mr Smith?
B:I'm sorry._____1____
A:When will he come back?
B:I think he'll be back in an hour.____2____
A:That's very kind of you. I'd like him to come to my birthday party.____3_____
B:Certainly.___4____I'll go and get a pen and a piece of paper. Now please give me your phone number.
A:7667569. My name is Liu Wei.
B:All right. ______5_____
A.Could I take a message?
B.Can I leave my telephone number for you?
C.Wait a minute, please.
D. He isn't here right now.
E.I'll tell him to call you back.
【小题1】________【小题2】_________【小题3】________【小题4】__________【小题5】__________ 查看习题详情和答案>>
If you want to find out a piece of information about anything , the best place to search for it is Wikipedia（维基百科）. This online encyclopedia is written by thousands of people around the world. Anyone can add or change the information if he or she finds it not correct or not well written. In this way, people who know a lot about a certain subject can write about it even if they are not university professors.
What is more, Wikipedia includes articles written in about 235 languages. This fact makes it one of the few websites (网站)on the internet that are truly international. It was started in 2001 by Larry Sanger and Jimmy Wales, as a free online English-language encyclopedia project. By April 2008, over 10 million articles had been put on Wikipedia. A quarter of the articles are in English. Wikipedia is also a place where people can find the latest news.
However, Wikipedia has its own problems. There have been many complaints that some of the information on Wikipedia is not accurate（准确的）and some important subjects are not included. This has led to arguments between the writers of articles. The people running Wikipedia say that the accuracy of the information is improving and that it is one of the top 20 visited websites on the internet.
So, if you are looking for some information, why not try Wikipedia?
1.Wikipedia is ___________.?
A. a computer game? ?????????? B. an online magazine
C. a free university????????????? D. a website encyclopedia
2. People who write on Wikipedia__________.
A. know much about a certain subject??????
B. likes writing different stories
C. should be university professors?? ??????
D. are usually famous scientists
3.Wikipedia is truly international because_________.
A. everything is written in English???
B. the articles are in about 235 language
C. there are over 10 million articles??
D. each writer can write in Various languages
4.Besides information about different subjects, people can also__________ on Wikipedia.
A. watch interesting movies??????? B. send e-mail to friends
C. read about the latest news?????? D. play exciting games
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Air is a colorless, tasteless and invisible（看不见的）gas that is around us. An “empty” drinking glass and an “empty” room, in fact, are not really empty. Each is filled with air. When the glass is filled with water, the water pushes the air out of the glass.
Air, as a gas, has no definite shape, but because it is matter, it takes up space and it has weight. It is easy to prove that air is something that takes up space. Stuff a piece of dry cloth（布）into the bottom of a glass so that it will not fall out when the glass is turned upside down. Push the upside down glass, holding straight up and down, into a jar of water till the glass is completely covered. When the glass is taken out of the water, the cloth is still dry. The air inside the glass shows that it takes up space and keeps the water from coming in.
【小题1】Since air is matter, it has ________.
| A．room , and weight as well | B．both room and shape |
| C．either room or weight | D．neither shape nor weight |
| A．撕 | B．盖 | C．取掉 | D．塞 |
| A．is carried out in the space | B．must be done in the lab |
| C．is made in the room | D．can only be done in the open air |
Nowadays, it’s common to keep dogs as pets. We can often see dogs’ owners taking them for a walk. But have you h 【小题1】 of taking penguins for a walk? Here i 【小题2】 a piece of news from Japan. In Tokyo Zoo, penguins go out for a walk in line every day. It is said that this can make them happy and stop them from being homesick(想家的).The penguins in the zoo didn’t eat as
w 【小题3】 as they did in South Pole(南极) and they were u 【小题4】 to the keepers when they first got to the zoo, maybe they were not used to the life in the zoo. So the zoo keepers c 【小题5】 up with this good idea. They just let them walk as they did in South Pole. Now, all these penguins have become happy. 查看习题详情和答案>>