直到天黑了，他才意识到太晚了而无法回家。

on. Almost at once, we notice his appearance, style. of dress, and monner of speech. Furthermore, as we listen to what he has to say and observe the things he does, we begin to form. some ideas of what kind of person hisand what he intends to do. As you know from your own experience, though, we do not only gather these separate pieces of information. Instead, we go further and combine them into a unified picture. In short, we form. an overall im pression of each person we meet-an impression that can be favorable or unfavorable. But how precisely do we perform. this task? How do we combine so much different information into a clear first impression with such quick speed? A great deal of research has been performed on this question, and resulits point to the following answer: We perform. this task through a special type of averaging.

Expressed very simply our impressions of others seem to represent a weighted average of all information that can be gathered about them. That is, they reflect a process in which all information we have about others is averaged to gether—but with some facts, or input receiving greater sense. For example, in forming an impression of a new boss you would probably be influedced to a much greater degree by how this person gives you orders ( whether respectfully or not ) than by the color of his or her eyes. The fact that not all information about other persons affects our impressions of them to the same degree, raises an important question: Just what kinds of input receive the greatest weight? Again research provides some revealing(发人深思) an-swers.

This passage is mainly about_______.

A.how our first impressions are expressed

B.how our first impressions are formed

C.how we can favorably impress others

D.how first impression affect our lives

Research has shown that first impressions are generally more influenced by______.A.the way others spesk

B.appearance and styule of dress

C.all information we have

D.certain types of information at hand

The word “weight”in the last paragraph is closest in meaning to_______.A.amount

B.research

C.importance

D.burden

The following paragraph will most probably siscuss______.A.wrong first impression of other people

B.selected information for forming first impression

C.the importance of first impression in job situation

D.ways of making good first impression

According to the passage, the first impression is_______.A.the result of quick look

B.not based on enough information

C.a combination of pieces of information

D.the observation of what a person does

请帮忙给出每个问题的正确答案和分析，谢谢！

It's high time we ______ him a registered letter.

A．send

B．sent

C．has sent

D．had sent

Linda：Hello! This is Linda speaking.

Chris：Hello， Linda， this is Chris. _______66________ this Friday evening?

Linda：Yes， why?

Chris：There‘s a good concert， and I’ve got two tickets. I wonder ________67_______. Linda：That‘s great! _________68_________?

Chris：7 o‘clock. But how about _________69__________ at 6：45?

Linda：OK. I think I can make it.

Chris：After the concert， ________70_________， shall we?

Linda：Wonderful! Why don‘t we go to a Chinese restaurant?

Chris：Why not? OK， see you Friday.

Linda：See you then. Bye!

66.________

68.______

69.___________

70.________

67.________

请帮忙给出每个问题的正确答案和分析，谢谢！

pecial sharp teeth with which to break their way out of the shells. Crocodiles only live where it is hot. They are found in India, Australia, Africa and America. They spend most of their time lying around in the mud or the rivers. The crocodiles long powerful tail is used when the animal is swimming. It is also an excellent weapon, because it can be swung with great speed and force. One blow will knock down a man or even a big animal at once. The crocodile is very well protected against its enemies by the hard bony plates which cover most of its body, but because of the way its neck is formed, it cannot turn its head from side to side and so it can only see in front of itself. The crocodile has its teeth cleaned by the crocodile bird. For its food this bird takes the bits left in the crocodiles mouth. This helps the crocodile, which cannot clean its own teeth, for it cannot move its tongue up and down. With its rows of terrible pointed teeth it seizes its food, which may be a fish, an animal, or even a careless human being, and then holds it below the water until it is drown to death. The long-nosed crocodile is shy and timid and because of this, the people of West Africa where it lives, sometimes catch it for food. Many, many centuries ago there were crocodiles in England. We know this because we have found their bones buried far down in the earth on which London is built. But the Britain of today is too cold for them to live in. Crocodiles may grow to over thirty feet in length. When they lie floating in the water, they look like floating tree-trunks and it is often impossible to tell that they are there.

The female crocodile______.

A．buries her eggs

B．sits on her eggs

C．carries her eggs

D．eats her eggs

In order to keep error to a minimum，we are advised to_________．

A.separate our emotions from what we see

B.improve our memory of what we see

C.get a better look at what we are interested in

D.concentrate on what makes US relaxed

clear waste.

A．of which

B．of the two

C．of them

D．of the plants