单选题She is not so ______ at math as you are.A. wellB. goodC. better

单选题Whatdowelearnfromthedialogue?

单选题—Is John at home now? —Yes, I think ______.[A] so[B] right[C] too

单选题We can keep the books ______ a month. A. in B. of C. for

单选题Someone says, " Time is money. "But I think time is even more important than money. Why? Because when money is spent, we can get it back. However, when time is gone, it'll never return. That is why we mustn't waste time. It's true that the time is usually limited. Even a second is very important. We should make full use of our time to do everything useful.

单选题—Do you know the book Happiness? It is very popular.—Yes, Richard ______ it. A. writes B. will write C. wrote

单选题The Maryland Science Center stays open ______. [A] very day from 10 a.m. to8 p.m. [B] almost all the weekdays and weekends [C] on Thanksgiving Day and Christmas Day

单选题 Kim and Angela are good friends. They are a lot alike (相似). In fact. in some ways they am like twins (双胞胎). If you look at the picture. you can see that they am alike in many ways (方面).

单选题

单选题I don't know ______ he will come tomorrow. ______ he comes, I'll tell you.

单选题"What are you doing?" "I'm talking to my father ______ the phone."

单选题Joan has been a ______ since September.

单选题— May I ______ your bike? — Sure, here you are. How long do you want to ______ it? A.lend, keep B.borrow, keep C.borrow, lend

单选题The world is not only hungry, it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth"s surface is covered with water. But about 97% of this huge (巨大的) amount (总计，等于) is seawater, or salt (盐，腌) water. Man can only drink and use the other 3% - the fresh (新的，清新的) water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs and glaciers (冰河). Even worse (更坏的，更差的), some of it has been polluted. However (然面，不管怎样), as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall (降雨量), is still enough for us. But our need for water is increasing (日益地，愈加地) rapidly -almost day by day. Only if we take steps to deal with this problem now can we avoid (避开，避免) a severe (严重的，激烈的) worldwide (遍及地球的) water shortage (短缺) later (后来，过一会儿) on. A limited (有限的) water supply would have a bad effect (结果，效果) on agriculture and industry (工业，产业). We all have to learn how to stop wasting our precious (珍贵的) water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but only on a small scale (刻度，天平). The systems that have been worked out resemble (相似) those used in spacecraft (宇宙飞船).

单选题Mark Twain, the famous American writer, was once traveling to Dijon by train. As he was very tired that day and needed 1 sleep, he asked the conductor (乘务员) to wake him up 2 they came to Dijon. He 3 the conductor, "It may be very hard to wake me up. No matter 4 angry I get, just put me off the train." The conductor 5 . When Mark Twain 6 up, it was already dark. He knew at once that the 7 had forgotten to wake him up. He felt very angry. So he ran up to the conductor 8 shouted at him angrily. The conductor 9 him for a while, and said, "That American was 10 angrier when I put him off the train."

单选题Either Jim or Sam ______going to help the farmers with the orange harvest this afternoon.

单选题Everyone knows that in the city of Pisa in Italy there is a tower that "leans". The tower is built entirely of white marbles. The walls are 13 feet thick at its base. It has eight storeys and is 179 feet high. There is a stairway of 300 steps built into the walls, which leads to the top. At the top of the tower, you"ll see the city and the sea. The sea is six miles away. At the top, the tower is 16.5 feet out of the perpendicular. In other words, it "leans" over by 16.5 feet. If you were to stand at the top and drop a stone to the ground, it would hit 16.5 feet away from the wall at the bottom of the tower! What makes it lean? Nobody really knows the answer. Of course, it wasn"t supposed to lean when it was built; it was supposed to stand straight. It was intended as a bell tower for the church nearby. The church was begun in 1174 and finished in1350. The foundations of the tower were laid in sand, and this may explain why it leans. But it did not suddenly begin to lean—this began to happen when only three of its storeys had been built. So the plan was changed slightly and construction went right on! In the last hundred years, the tower has leaned another foot.