1._______ at such a time, his work attracted much attention.
D.To be published
2.A lot of natural resources in the mountain area are to be exploited and used.
—Can you go to the concert with us this evening?
A.No, I already have plans.
B.I’d love to, but I’m busy tonight.
C.No, I really don’t like being with you.
D.I’m ill, so I shouldn’t go out.
—It’s rather cold in here. Do you mind if I close the window?
B.No, go ahead
D.I don’t like it
5.Are you going to fix the car yourself, or are you going to have it _______?
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(4)、What are the problems facing scientists who want to use solar energy?
A.It is not easy to collect.
B.It is not easy to store.
C.It is not easy to find out.
D.both A and B.
7.Tom likes to playing _______, while his sister likes to play _______.
A.football; the piano
B.the football; the piano
C.the football; piano
8.John speaks French as fluently as he does German.
—Hello, I'd like to speak to Mr. Wang.
—He's out to lunch now. _______________.
A.Sorry, you can't.
B.I don't know.
C.No, you can't.
D.Would you mind calling back later?
Man has always wanted to fly. Even as long as eight hundred years ago, an Englishman had tried. He made a ___1___ of wings from chicken feathers and fixed them to his shoulders. Then he jumped from a tall building. As you can imagine, he did not fly very far. ___2___, he fell to the ground and broke several bones. The first real attempt at flying took place in France in 1783. The two Mongolian brothers knew that hot air rose. If they could fill a large balloon ___3___ hot air, they thought it would rise into the air and fly. They were right. They made a very large hot air balloon of cloth and paper. It measured ten meters in diameters. They filled it with hot air and the balloon got two hundred meters into the air. It fell to earth about three kilometers away.
At the next attempt, they ___4___ for passengers use a balloon to rise into the air and fly. We do not know what the passengers felt about the trip as they were a cock, a duck, and a sheep. But we ___5___ know that the trip lasted eight minutes and the animals landed safely.
11.—Hello, May I speak to Don, please?
A.I am Don. Who are you
C.Who could I help
D.This is Don. Who’s speaking
12.He has been ________for nearly three weeks after the death of his dear pet.
13.The atmosphere _______ certain gases mixed together in definite proportions.
B.is made up
D.makes up of
14.— Alice, your hair design is really nice.
B.Yours is nice
C.Thank you very much
D.My hair design is not nice at all
15.—Do you think I could borrow your dictionary this weekend?
—Sorry, but ________________
A.you can not have it right away.
B.I'm sure you'll like it.
C.I'm going to need it myself.
D.the dictionary is just there.
16.Eggs, though rich in nourishments, have ________ of fat.
A.a large number of
B.the large number
C.a large amount
D.the large amount
17._______ a reply, he decided to write again.
C.Not having received
D.Having not received
18.I felt that I was not yet _______ to travel.
19.He spoke so loudly _______ be heard by all.
B.in order to
20.—This box is too heavy for me to carry it upstaris.
A.You may ask for help.
B.I’ll give you a hand.
C.Please do e a favor.
D.I’d come to help.
21.I couldn't find my English-Chinese dictionary _______.
22.I was talking with my mother on the phone when we were _______ suddenly.
23.Listen! Who ________ in the next room? The voice is so beautiful.
24.Do you know the man _______ under the apple tree?
25.— Thanks a lot. You've gone through so much trouble.
A.It's no trouble at all
C.I don't think it's a trouble
D.That's very kind of you
26.The car accident happened at _______ crossroads a few meters away from _______ bank.
27.—Wow! This is a marvelous room! I've never known you're so artistic.
A.Great, I am very art-conscious
B.Don't mention it
C.Thanks for your compliments
—Thank you ever so much for the coat you bought me.
B.I'm glad you like it
C.Please don't say so
D.No, it's not so good
29.—Do you mind if I read the newspaper on the table?
A.Good news for you
B.Go ahead, please
D.No, I can’t
30.John succeeded ________ what he wanted.
—How about going to dinner at the Mexican restaurant tonight?
B.Sorry, I like Mexican food.
D.Glad you like it.
32.The patients are quite _______ to the nurses for their special care.
33._________ the War of Independence, the United States was an English colony．
34.Suzan speaks English _______ John.
A.so fluently as
B.as fluent as
C.more fluent than
D.much more fluently than
35.To her relief, the doctor said she could resume working immediately after she left hospital.
36.When we write, we must write as ________ as we can.
37.—Can I help you carry the bag?
B.you couldn’t do it.
C.I could do it myself.
D.Thank you, but I can manage it myself.
38.It is _______ that he has to ask for help.
A.so a big job
B.a so big job
C.such big job
D.such a big job
—May I use your bike for a moment?
B.It doesn’t matter.
C.By all means.
D.I have no idea.
—Would you like to go skating with me?
A.Yes, I think so
C.Yes, I'd love to
D.I'm afraid not