问题 填空题

(10分)下表是元素周期表的一部分,针对表中所列①~⑩元素,填写下列空白。

       族

周期

IAⅡAⅢAⅣAⅤAⅥAⅦA
    
  
(1)单质性质最不活泼的元素的某种核素,核内有21个中子,则该核素的原子符号为____________________。

(2)①~⑩中非金属性最强的元素在元素周期表中的位置为____________________。

(3)第二周期元素的最高价氧化物对应水化物中,酸性最强的是____________________(填化学式)

(4)⑤⑥⑦三元素的最高价氧化物对应水化物的碱性由强到弱的顺序为(填化学式):

________________________________________ 。

(5)③④⑨三元素的氢化物的沸点由高到低的顺序为(填化学式)____________________。

答案

(每空2分,共10分)

(1)Ar(质子数18不写亦给全分)  (2)第二周期第ⅦA族   (3)HNO3

(4)NaOH  Mg(OH)2  Al(OH)3            (5)H2O  HF  HCl

单项选择题 A3/A4型题
阅读理解

I am a strong believer that if a child is raised with approval (准允), he learns to love himself and will be successful in his own way. Several weeks ago, I was doing homework with my son in the third grade and he kept standing up from his chair to go over the math lines. I kept asking him to sit down, telling him that he would concentrate better. He sat but seconds later, as if he didn’t even notice he was doing it, he got up again. I was getting frustrated (受挫), but then it hit me. I started noticing his answers were much quicker and accurate when he stood up. Could he be more absorbed while standing up?

This made me start questioning myself and what I had been raised to believe. I was raised to believe that a quiet, calm child was a sure way to success. This child would have the willpower to study hard, get good grades and become someone important in life.

Now those same people perhaps come to realize that their kids are born with their own sets of DNA and personality qualities, and all you can do is loving and accepting them. As parents, throughout their growing years and beyond that, we need to be our kids’ best cheerleaders, guiding them and helping them find their way.

I have stopped asking my son to sit down and concentrate. Obviously, he is concentrating just in his own way and not mine. We need to learn to accept our kids’ ways of doing things. Some way may have worked for me but doesn’t mean we need to carry it through generations. There is nothing sweeter than being personal and unique (独特的). It makes us free and happy and that’s just the way I want my kids to live their own life. 

小题1:Time and again the author got his son seated in order to make him ______.

A.work fast

B.go polite

C.stay relaxed

D.keep attentive小题2:The underlined “it” (in the first paragraph) probably refers to ______.

A.his son’s doing better while standing up

B.his failure in keeping his son under control

C.his own experience as a school boy

D.his disappointment with his active child小题3:By this passage, the author attempts to tell other parents to ______.

A.correct their kids’ manners from the early ages

B.respect and trust their kids’ ways of behaviors

C.develop a good relationship with their children

D.guarantee their children’s freedom at home小题4:Which of the following would be the best title of the passage?

A.Parental help with teens’ study

B.Adult influence on teen growth

C.Kids’ success in their own styles

D.Friendship between generations