问题 填空题

下表是我国部分城市空气质量周报,阅读并回答下列问题:

城市污染指数首要污染物空气质量级别城市污染指数首要污染物空气质量级别
北京92TSP济南76TSP
天津82TSP武汉83NOx
哈尔滨96TSP重庆98SOx
上海74NOx贵阳69TSP
注:TSP-空气中的飘尘;NOx-氮的氧化物;SOx-硫的氧化物.
(1)最容易出现酸雨的城市是______.为减少城市酸雨的产生,可采取的措施是______.①少用煤作燃料;②采用燃料脱硫技术;③向已酸化的土壤中加石灰;④开发新能源.

(2)汽车尾气(含有CO、SO2与NO等物质)是城市空气的污染物,治理的方法之一是在汽车的排气管上装一个催化转换器,其特点是使CO与NO反应,生成可参与大气生态环境循环的无毒气体,写出CO与NO反应的化学方程式______.控制城市汽车尾气对空气造成污染的方法是______.①开发氢能源;②使用电动车;③植树造林;④戴呼吸面具.

答案

(1)酸雨的形成原因是由于大量使用化石燃料,导致空气中二氧化硫、氮的氧化物过多,随着雨水降落而形成的,因此容易形成酸雨的城市是重庆,预防酸雨的措施是减少化石燃料的使用,或是采用煤脱硫技术,或开发清洁的能源代替;

(2)CO与NO反应,生成可参与大气生态环境循环的无毒气体,即生成CO2和N2,其化学方程式为2CO+2NO

 催化剂 
.
 
2CO2+N2

故答案是:(1)重庆,①②④;

(2)2CO+2NO

 催化剂 
.
 
2CO2+N2,①②③.

解答题
阅读理解

The first visit to a foreign country that I can remember was when I was about seven years old. We live about 5 miles away from the Canadian border(边界). My family and I went to Parc Safari, Quebec, a wonderful place that has animals and rides. We drove down a nice long road. My sister and I sat in the back of the car, and it was a hatchback(有仓门式后背的汽车) so we opened it up. I remember feeding the animals snacks we had bought for ourselves.

The time we went we were told there would not be monkeys because they had escaped and had not been found. I remember thinking to myself, how cool it would be to see a monkey in our backyard.

Even though the monkeys were not there it was still so much fun. When we reached the area that had camels, giraffes and other animals, I remember one of the camels reached into the car to get our snacks. However, we were a little gross out because the camels seemed to froth(吐白沫) at the mouth and we had camel slobber(口水) all over the car and us.

It was one of the best family vacations that I can remember. It was not too far from home, it was in a different country and it was with my family. I cannot remember if we went on the rides or not but seeing many animals was a great time. Now I am grown up and have a son, and I am planning to go there again. He is 7 years old and I think he is at a great age to enjoy a trip like this. I am sure it has changed a lot over the years but it will still be a great family trip.

小题1:Where did the author live when he was 7 years old?

A.In Canada

B.Near the Canadian border

C.In the central US

D.In Parc Safari小题2: We fed the animals something _____.

A.offered by people living there

B.we bought for them

C.we prepared for ourselves

D.cooked by my sister小题3:what does the underlined part “gross out” in paragraph 3 probably mean?

A.surprised

B.excited

C.tired

D.uncomfortable小题4: What does the author intend to do?

A.To revisit the place he went to at seven.

B.To take his 7-year-old son to a zoo.

C.To have a family trip in his own country.

D.To have a holiday abroad with his parents.