试题与答案

阅读理解。 It's no secret that the world has

题型:阅读理解

题目:

阅读理解。

     It's no secret that the world has become a very fastpaced place. Free time has been replaced by

cyber (网络的) time to the point where my family feels the need to comment on my presence at the

dinner table. With all these options and distractions (使人分心的事) it can be hard to spend quality

time with the people you love.

     My Dad and I have always worked around this. Over years we've learned how to watch in silence

while enjoying each other's company and by now we know what to comment on during the commercials.

     Once we were watching one of our favourite shows. At the commercial he turned to me and asked

if I liked going to school.

     I thought about the question for a few moments before admitting that I did.

     "Do you look forward to going?"

     This question seemed easier to answer, but I thought it over.

     "Not all the time. Sometimes, there are classes that I dread. But then there are people I want to see

or things I want to do, so I guess it evens out."

     Dad nodded.

     "You see these characters on the show? They like going to work. They look forward to it. They are

so idealistic that they go to work every day, believing they can change the world. That's why we like to

watch them."

     I thought about what he was saying.

     "Do you look forward to going to work?" I asked.

     Dad paused.

     "I honestly don't think about it. It's not something I anticipate or dread. It's just something that I do.

I always looked forward to going to school, though. I wanted to learn. Now that I think about it, when

I first started working I did look forward to it. That's what's important. Do something that you enjoy

doing. Do something that you will look forward to. Otherwise, what's the point?"

     Now I have learned that sometimes it's not the length of the talk that's important but what's said during

the talk. It is still possible to have quality time during a commercial break.

1. The father quoted the characters on the show to say that a person should have ________. 

A. dream     

B. belief

C. doubt                              

D. love

2. According to the passage, why doesn't the boy want to go to school?

A. He is afraid of being made fun of.                  

B. He has something important to do.

C. He loses interest in some classes.                    

D. He falls behind other classmates.

3. The underlined word "point" means ________.  

A. mark              

B. topic

C. lesson            

D. goal

4. What's the main idea of this passage? 

A. Children can have quality time with their parents.

B. Children feel happy when talking with parents.

C. Parents and children can enjoy the same TV show.

D. Children are unwilling to stay with their parents.

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:A.由二氧化碳合成金刚石是化学变化,正确,有新物质生成。B.金刚石是碳的一种同位素,错误,应该是一种单质。C.钠被氧化最终生成碳酸钠,正确;D.金刚石是原子晶体,原子间通过共价键结合故...

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题型:填空题

(6分)NaCl 和KNO3在不同温度时的溶解度如下,回答下列问题。    

温度/℃0102030405060
溶解度/gNaCl35.735.836.036.336.637.037.3
KNO313.320.931.645.863.985.5110
(1)10℃时,在100 g水里溶解_________g KNO3时,溶液恰好达到饱和状态。

(2)右图为NaCl 和KNO3的溶解度曲线,则表示NaCl的溶解度曲线是_________(填“甲”或“乙”);其中温度t的范围可能在________(填字母序号)。  

A.10℃~20℃             B.20℃~30℃ 

C.30℃~40℃             D.40℃~50℃

(3)10℃时,分别在100 g水中加入35 g NaCl 和KNO3固体,加热到60℃时,NaCl溶液为__________(填“饱和”或“不饱和”)溶液。加热前后,有关两溶液的说法正确的是____________(填字母序号)。

A.10℃时,两溶液中溶质的质量分数相同

B.60℃时,两溶液中溶质的质量分数相同

C.加热前后,NaCl溶液中溶质的质量分数不变

D.加热前后,KNO3溶液中溶质的质量分数不变

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