问题 选择题

64的算术平方根是

A.±4

B.±8

C.4

D.8

答案

答案:D

题目分析:一个正数有两个平方根,且它们互为相反数,其中正的平方根叫它的算术平方根.

64的算术平方根是8,故选D.

点评:本题属于基础应用题,只需学生熟练掌握算术平方根的定义,即可完成.

多项选择题
阅读理解

阅读理解。

     Surely, it's good to get along with your teacher because it makes the time you spend in the classroom more

pleasant. But really, there's one important reason why you should get along with your teacher. When you do it,

"learning bursts right open," says Evelyn Vuko, a long time teacher who writes an education column (专栏)

called "teacher says" for the Washington Post.

     In fact, kids who get along with their teachers not only learn more, but they're more comfortable asking

questions and getting extra help; This makes it easier to understand new material and do your best on tests.

When you have this kind of relationship with a teacher, he or she can be someone to turn to with problems,

such as problems with learning.

     As a kid in elementary or middle school, you're at a wonderful stage in your life. You're like a sponge (海

绵), able to _____. Besides, you're able to think about all this information in new ways. Your teacher knows

that, and, in most cases, is excited to be the person who's giving you all that material and helping you put it

together. Remember, teachers are people, too, and they feel great if you're open to what they're teaching you.

That's why they want to be teachers in the first place-to teach!

     Some kids may be able to learn in any case, whether they like the teacher or not. But most kids are sensitive

to the way they get along with the teacher, and if things aren't going well, they won't learn as well and won't

enjoy being in class.

1. What is the best title of the passage? (within 10 words)

    ___________________________________________________________________________________

2. Which sentence in Paragraph l can be replaced by the following one "you can learn more and easily."?

    ___________________________________________________________________________________

3. Please fill in the blank with proper words or phrases to complete the sentence.

    ___________________________________________________________________________________

4. What are the benefits if kids get along well with their teachers?

    ___________________________________________________________________________________

5. Translate the underlined sentence in the third paragraph into Chinese.

    ___________________________________________________________________________________