问题 填空题

(6分)已知5种元素的原子序数的大小顺序为C > A > B > D > E, A、C同周期,B、C同主族,A与B形成的离子化合物A2B中,所有离子的电子数相同,其电子总数为30;D和E可形成4核10电子分子,请回答:

(1)写出元素符号:A     C    

(2)写出电子式:D元素的单质      ;B与E形成的化合物        

(3)用电子式表示离子化合物A2B的形成过程                                   

答案

(6分)(1)Na;S(2)略(3)略

阅读理解

阅读表达。

    阅读短文,并按照题目要求用英语回答问题.

     It's a fine line parents walk as they try to guide their kids into adulthood. You want to protect but not

treat too kindly, advise but not control and let them live their own lives-with some input, of course.

     If your child asks you to tie a particular hardtotie knot(绳结)for a project she is working on,just tie

the knot. Don't start helping with the rest of the project or making suggestions on how to do it. She wants

to do it herself, in her own way. Before offering help or advice which your child has not asked for, count

to ten. Perhaps in those seconds you'll decide that the advice would do no good,or isn't really that

important,and you'll drop it. If the advice still seems important, you will give it,but the pause may lead you

to give it in a more thoughtful way.

    Remember that your child is not you and is not a reflection of you. We make a serious mistake if we

try to shape our children into copies of ourselves, or if we think of them as extensions or reflections of

ourselves. We need to help them to be them, not try to turn them into us or into something that we think

will make us look good.

     Our primary responsibility to our children is not that of telling them momenttomoment or daytoday

how to behave but providing them with a healthy environment in which to develop. For example, one of

the best ways you can help your kids is to work with your community to create safeenough outdoor

places to play in your neighborhood.

1. What's the best title of this text? (No more than 10 words)

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2. What is the primary responsibility of parents to their children?(No more than 10 words)

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3. What is the meaning of the underlined word "reflection" in Paragraph 3?(No more than 5  words)

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4. Make a list of three mistakes that we parents usually make in guiding the kids.(No more than 20 words)

(1)________________________________________________________________________

(2)________________________________________________________________________

(3)________________________________________________________________________

5. What should a parent do when his/her child asks for help or advice according to the passage?(No more than 15 words)

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单项选择题