What do scientists say about the transmission of the swine flu virus？

A . valley B . value C . vary D . valid

A．Enter the code number. B．Choose many different types of music. C．Listen to others singing so everyone has an audience. D．Change your voice from a woman to a man or vice-vers

A. Checking the understanding. B. Evaluating the activity. C. Providing feedback. D. Organizing the activity.

Sharks do not have bones, and a shark has an extremely good sense of smell. It can find. small amounts of substances in the water, such as blood, body liquids and chemicals produced by animals. Sharks also sense electrical and magnetic power linked to nerves and muscles of living animals. These powerful senses help them find their fond. Some sharks will eat just about anything. Many unusual things have been found in the stomachs of some large sharks. They include shoes, dogs, a cow's foot and metal protective clothing. About forty percent of the different kinds of sharks lay eggs. The others give birth to live young. Some sharks carry their young inside their bodies like humans do. Scientists are beginning to understand the importance of sharks to humans. Medical researchers want to learn more about the shark's body defense system against disease. They know that sharks recover quickly from injuries. Sharks appear never to suffer infections, cancer or heart diseases. What is this passage mainly about？ A．The necessity of protecting sharks. B．The living environment of sharks. C．The dangers of sharks to human beings. D．An introduction to sharks.

A．They don't respect her. B．She was treated unfairly. C．She didn't work very hard. D．She was given a big reward.

A.Observing the activity B.Evaluating the activity C.Monitoring the activity. D.Controlling the activity

A．I must speak to my friend’s parents first, then introduce myself to his grandparents． B．I didn’t expect to see so many peopl E．I can’t stand crowds． C．“It’s a great privilege to meet so many members of your family．” D．“What a lovely big family! Do your grandparents live here too”

A．The weather． B．The newspaper． C．The whether． D．The rain．

THE QUALITIES OF A JOURNALIST In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary. Marks will be awarded for content, organization, grammar and appropriacy. Failure to follow the above instructions may result in a loss of marks. Write your composition on ANSWER SHEET FOUR.

A.Controlling discipline. B.Giving prompt. C.Evaluating students" work. D.Directing students" attention to the lesson.

A.they must learn to destroy all the insects that we need B.they must be sure one insect pest is not traded for another C.research keeps them from inventing new insecticide for the crops D.research helps them find a way to kill all insects

A.They are an obstacle to a companys development, B.They lack the creativity of the younger generation. C.They cannot work as efficiently as they used to. D.They prevent young people from getting ahead.

W: Sure. Weren't you in class on Monday？ That's when it was given out. M: No, I missed that class. Was there a handout？ W: No, the instructor just wrote the assignment on the board. M: Could I copy the assignment from your notes？ W: You could, ff I had copied it all down; but I just wrote down the part that I wanted. M: Oh, no. W: You see, there were four choices of topics ior the term paper; but, when I saw them, I knew which one I wanted so I didn't copy the others down. M: Can you remember any o'f the others？ W: Let's see. There was one about World War I, something about it, but I don't remember what, and there was one called "the idea of progress in the nineteenth century." M: And what was the last one？ W: I can't remember. My mind is a complete blank. Maybe you can ask someone else. M: Yes, I will. Anyway, those are certainly broad topics. W: Yes, but you van focus on a special area within them. Which one would you take？ M: Of course, I don't know what the last one is, but of these three, I think I'd take "the idea of progress." W: That's very abstract. M: Yes, but it's one of my interests and I've read a lot on the subject. I've never written a term paper on it though. W: Me neither. I haven't even read about it. Are you going to class on Wednesday？ M: Yes. W: Maybe he'll write it on the board again. M: I hope so. Good luck with your paper. W: Same to you. (23) A．Three. B．Four. C．Five. D．Six.

It is the same in history. Many things have been forgotten because we do not have any written account of them. Sometimes men did keep a record of the most important happenings in their country，but often it was destroyed by fire or in a war. Sometimes there was never any written record at all because the people of that time and place did not know how to write. For example, we know a good deal about the people who lived in China 4, 000 years ago, because they could write and leave written records for those who lived after them. But we know almost nothing about the people who lived even 200 years ago in central Africa because they had not learned to write. Sometimes, of course, even if the people cannot write, they may know something of the past. They have heard about it from older people and often songs and dances and stories have been made about the most important happenings, and these have been sung and acted and told for many generations, for most people are proud to tell what their fathers did in the past. This we may call ？remembered history ” . Some of it has now been written down. It is not so exact or so valuable to us as written history is, because words are much more easily changed when used again and again in speech than when copied in writing. But if there are no written records, such spoken stories are often very helpful. Which of the following is NOT suggested in the passage？ A.Written history is more reliable. B.Written records play an important role in learning about history. C.A written account of our daily activities helps to answer many questions. D.Where there are no written records, there is no history. Little is known about the central Africa 200 years ago because ______.A.there was nothing worth writing down at that time B.people there ignored the importance of keeping a record C.people there did not know how to write D.the written records were perhaps destroyed by a fire “ Remembered history” refers to ______.A.history based on a person’s imagination B.stories of important happenings passed down from mouth to mouth C.songs and dances about the most important events. D.both B and C “ Remembered history” is regarded as valuable only when ______.A.it is written down B.No written account is available C.it proves to be timely D.People are interested in it It is suggested that we could have learned more about our past if ancient people had ______.A.kept a written record of every past event B.burnt their written records in wars C.told exact stories of the most important happenings D.made more songs and dances 请帮忙给出每个问题的正确答案和分析，谢谢！

A．Compare an on-campus service model with an off-campus one B．Interview the service manager and employees at the cafeteria C．Recommend service improvements at the cafeteria and the bookstore D．Analyze the service design of a nearby restaurant