问题 不定项选择

2007年10月24日,我国发射了第一颗探月卫星——“嫦娥一号” ,使“嫦娥奔月”这一古老的神话变成了现实.嫦娥一号发射后先绕地球做圆周运动,经多次变轨,最终进入距月面h=200公里的圆形工作轨道,开始进行科学探测活动.设月球半径为R,月球表面的重力加速度为g,万有引力常量为G,则下列说法正确的 [ ]

A.嫦娥一号绕月球运行的周期为

B.由题目条件可知月球的平均密度为

C.嫦娥一号在工作轨道上的绕行速度为

D.在嫦娥一号的工作轨道处的重力加速度为

答案

BD

改错题

四、写作(共两节,满分35分)

第一节 短文改错(共10小题;每小题1分,满分10分)

以下标有题号的每一行均有一个错误,请找出,并按下列情况改正:

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词。

此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的词。

此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

注意:请在答题卡上作答。

At the beginning of this term, we have a new classmate,                                  76.          

Fang Hua, from another school. At first I don't think much                                         77.          

of him. Therefore, after he got a seat beside me, I got to know                       78.          

him and we became friends. He isn't as proudly as I thought;                                    79.          

in fact he have very kind and friendly. He is good at physics.                             80.          

When I have trouble with it, I'll turn him for help. I also                                               81.          

find him humorous. He can even make up joke about things                             82.          

around us. While someone in my class is in low spirits, he is                             83.          

sure to making him happy. He is good at sports, too. Though                                    84.          

he isn't perfect, we look him as our good friend.                                                            85.          

阅读理解

阅读理解。

     With a good shopping position and the right amount (数量) of money, any educated person ought to

be able to make a living out of a bookshop. It is not a difficult trade to learn and the large chain-stores

can never force the small bookseller out of existence as they have done to the corner shop. But the hours

of work are very long-I was only doing a part-time job, but my boss put in a seventy-hour week,besides

regular journeys out of shopping hours to buy books.

     The real reason why I should not like to be back in the book trade for life, however, is that while I was

in it I lost my love of books. A bookseller cannot always tell the truth about his books, and that gives him

a dislike for them. There was a time when I really did love books-loved the sight and smell and feel of

them-if they were fifty or more years old, that is. Nothing pleased me quite so much as to buy a bargain lot

of them on sale for several pounds. There is a peculiar flavour (独特的味道) about the unexpected books

you pick up in that kind of collection: little-known eighteenth-century poets, or out-of-date geography

books. For occasional (偶尔的) reading-in your bath, for example, or late at night when you are too tired

to go to bed-there is nothing as good as a very old picture story-book.

     But as soon as I went to work in the bookshop I stopped buying books. Seen in a mass. five or ten

thousand at a time, books were dull and even a little tiresome. Nowadays I do buy one occasionally, but

only if it is a book that I want to read and can't borrow, and I never buy rubbish.

1. According to the passage, _____ is one of the necessary conditions to run a bookshop.

A. an educated shop-owner

B. a good position at a street corner

C. a regular journey out of the shop

D. the force of large chain-stores

2. The author should not like to be back as a bookseller for life because _____.

A. he hated his job of selling books

B. selling books was only a part-time job

C. the books in the shop gave him a dislike

D. he was unable to be honest about the books he sold

3. The books preferred by the author should be those _____.

A. stories making readers sleepless

B. valuable ones bought on sale

C. peculiar ones with great expectation

D. geography ones from the eighteenth century

4. The author will only buy new books _____.

A. if he feels dull and tired

B. after he gives up his job as a bookseller

C. which are interesting but hard to borrow

D. when he throws away old ones