【B3】A.needB.wantC.absenceD.shortage

A.takes

B.extension

C.makes

D.derives

A.reached for

B.reach

C.asked

D.want

A.dozen of

B.dozens

C.dozen

D.dozens of

A.During the discussion

B.remained silent

C.when

D.asking

Not long ago，I had my first on-line chat. I thought it would be 【B1】 because I have heard so many people 【B2】 it in that way. But it was, disappointingly, quite an unpleasant 【B3】 . On line I met a man 【B4】 said he was a manager in a big company in Dalian. We 【B5】 pleasantly first, then exchanged e-mail 【B6】 in order to keep in touch in the future. 【B7】 ，he sent me 【B8】 . When I opened it, I found, to my 【B9】 , a detailed(详细的）self-introduction including age, 【B10】 , weight, habits and future plans. It was an advertisement for a dating(约会）service! I was hurt 【B11】 felt rather angry.

When I told a veteran(有经验的）Internet surfer(网民）【B12】 my experience, he said it was not 【B13】 . I was 【B14】 .The Web provides such a nice, large place to make friends, why do some people 【B15】 it？

The relationship between one another should be mutual(互助的)politeness and 【B16】 . Online we 【B17】 see one another' s physical form, but we are talking through our 【B18】 .Such 【B19】 as the one I met are not polite at all.

Since the Web belongs to everyone，every user has a duty to keep a friendly and polite atmosphere(氛围). We need 【B20】 honesty and respect on-line.

【B1】

A.exciting

B.disappointing

C.surprising

D.frightening

A.business

B.matter

C.experiment

D.experience

Speaker B ：_________

A.Why don’t you go over the textbook before we discuss some questions？

B.What course of action do you want me to recommend？

C.I think it’s an excellent suggestion, I’ 11 try my best.

D.The idea is not bad, yet I doubt if that would do my best.

Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.

There is a good reason for covering each bite. The plastic keeps pieces of food from travelling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’t pull them to the floor when they are out of the plastic in a spaceship. (78) They move here and there and can get into a man’ s eyes or into the spaceship' s instruments. If any of the instruments is blocked，the astronauts may have trouble getting safely home.

As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himself to his seat with a kind of seat belt. Or，if he wants to，he can sleep in a sleeping bag which is fixed in place under his seat. But be careful he must put his hands under the belt when he goes to sleep. This is because he is really afraid that he might touch one of controls that isn* t supposed to be touched until later.

Why would astronauts cover each bite of food in space？

A.Because small pieces of food would fall down to the floor.

B.Because weightless pieces of food might make trouble when they travel around.

C.Because they haven’t enough food for longer trips.

D.Because astronauts don’ t want to waste food.

Guest ：___________

A.No, don’t trouble, drunk enough.

B.No, you couldn, t, I'm not thirsty.

C.No, you couldn, t, I'm not thirsty.

D.Yes, you could, I’d like some Coca Cola.