问题 填空题

古希腊数学家把1,3,6,10,15,21,…叫做三角形数,根据它的规律,则第100个三角形数与第98个三角形数的差为______.

答案

第100个三角形数与第98个三角形数的差为199.

阅读理解

阅读理解。

      A good way to pass an exam is to work hard every day in a year. You may fail in the exam if you are lazy

(懒惰) for most of the year and then work hard only a few days before the exam. If you are taking an English

exam, do not only learn rules of grammar. Try to read stories in English. Speak in English whenever you can.

A few days before the exam you should go to bed early. Do not stay up late studying. Before you start the exam,

read carefully over the question paper, try to understand the exact (确切的) meaning of each question. When

you have at last finished your exam, read over your answers. Correct (改正) the mistakes if there are any, and

be sure that you have not missed anything out.

1. How can we do well in exams? [ ]

A. We should work hard every day in the year.

B. We should go to bed early a few days before an exam.

C. We should read over the answers before we hand in our papers.

D. We should do A, B, C.

2. Learning rules of grammar ________ to pass an exam. [ ]

A. is enough

B. is not enough

C. is not impossible

D. is no use

3. Speak in English whenever you can. It is _______ to your English study. [ ]

A. helpful

B. impossible

C. wonderful

D. foolish

4. Make sure that you _______ before you hand in your paper. [ ]

A. remember rules of grammar

B. have thought over and over again

C. have answered all the questions

D. have read stories in English

5. In the sentence "Do not stay up late at night studying", the expression "stay up" means _______. [ ]

A. 逗留

B. 呆坐

C. 熬夜

D. 停止

单项选择题