搜题请搜索小程序“爱下问搜题”
问题 阅读理解

阅读理解

      We surveyed(调查) 300 young people on what they like to do at weekends. One hundred people are from the ages of 11-18, one hundred 19-26 and one hundred 27-35. The above shows their answers:

1. How many people enjoy playing computer games in the 11-18 group?

A. 20.

B. 50.

C. 60.

D. 75.

2. The people of 19-26 enjoy ______ most.  

A. watching TV          

B. going to the movies

C. playing computer games      

D. taking a walk

3. According to the survey, which two activities do most people enjoy doing?

A. Playing computer games and watching TV.

B. Playing computer games and taking a walk.  

C. Watching TV and going to the movies.

D. Going to the movies and taking a walk.

4. From the chart above, we can see the older people are, the more they like ______.

A. watching TV            

B. taking a walk  

C. going to the movies         

D. playing computer games

5. Which of the following is TRUE according to the chart?   

A. Fewest people like taking a walk.  

B. The people of 11-18 like taking a walk most

C. 90 people like going to the movies in the 19-26 group.

D. The people of 27-35 like playing computer games most.

答案

1-5 DACBA

单项选择题

某小偷；偷窃他人东西被捉；遭到暴打。你打看法是？（）

A、活该

B、打了他；也许能帮助他改过自新

C、送派出所

D、别打坏了就行
查看答案
实验题

测定生成SO3的转化率可以用下图装置，装置中烧瓶内发生的化学反应方程式为：Na2SO3（s）+H2SO4（85%）=Na2SO4+H2O+SO2↑（已知SO3的熔点是16.8oC，沸点是44.8oC）

（1）装置中甲管的作用是__________________。

（2）根据实验需要，应该在I、II、III、IV处连接合适的装置，请从下图A〜E装置中选择最适合装置并将其序号填至下面的空格中，每个装置不重复使用。

I、 II、III、IV处连接的装置分别是                          。

（3）为使SO2有较高的转化率，实验中加热催化剂与滴加浓硫酸的顺序中，应采取的操作是____________ ,若用大火加热烧瓶时，SO2的转化率会____________ (填“升高”、“不变”或“降低”)。

（4）有一小组在实验中发现，SO2气体产生缓慢，以致后续实验现象不明显，但又不存在气密性问题，请你推测可能的原因（可以不填满）①原因：______    ②原因 ：______     ③原因：______

（5）将SO2通入含1mol氯酸的溶液中，可生成一种强酸和一种氧化物，并有6.02×1023个电子转移，则该反应的化学方程式为                    

（6）用n mol Na2SO3粉末与足量浓硫酸进行此实验，当反应结束时，继续通入O2一段时间后，测得装置IV增重了 mg，则实验中SO2的转化率为         。(用含m、n的代数式填写）
查看答案