题目内容

【题目】阅读材料,回答问题。

材料一:中国最北省会黑龙江省哈尔滨市11月4日上午遭遇了2016年入冬以来的首个重度雾霾天气。哈尔滨市出现雾霾天气主要有以下三方面原因:一是气象因素影响,近几天哈市持续逆温和弱风气象,水平方向和垂直方向上不利于污染物扩散。二是城郊及周边县市在秋整地期间大量焚烧秸秆,产生大量烟尘。三是近日供暖燃煤锅炉陆续启炉。

材料二:我国人均耕地不及世界人均耕地的47%,全国耕地分布在山地、丘陵、高原地区的占66%,而且耕地中74.5%是旱地,只有25.5%是水田,全国有30%的耕地受水土流失危害,因此我国坚守18亿亩耕地“红线”。

(1)根据材料一说出哈尔滨市出现雾霾天气的人为原因是__________________________。

(2)材料二反映了我国耕地资源十分紧张,我国坚守18亿亩耕地“红线”的原因是____________________________________________________________________________。

(3)我国耕地问题十分突出,为此我国制定的土地基本国策是( )

A.计划生育 B.十分珍惜和合理利用每一寸土地,切实保护耕地

C.少生优生,幸福一生 D.实行毁林开荒、围湖造田,增大耕地面积

【答案】1)大量焚烧秸秆和供暖燃烧锅炉陆续启炉(2)人均耕地不足且水土流失严重(3B

【解析】读材料可知:哈尔滨市出现雾霾天气的人为原因是:大量焚烧秸秆和供暖燃烧锅炉陆续启炉;

18亿亩耕地红线就是保持我国耕地总量18亿亩不能减少的刚性约束,任何人、任何地方不得以任何理由突破限制,我国坚守18亿亩耕地红线的原因是人均耕地不足且水土流失严重;

我国人均耕地面积远远低于世界平均水平,为此制定的基本国策是十分珍惜和合理利用每一寸土地,切实保护耕地.

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【题目】Fill in the blanks with proper words(在短文的空格内填入适当的词,使其通顺。每空格限填一词,首字母已给)

There are so many things around us that make life more convenient. What might life be like without them? We asked our readers what they thought were the most u 1inventions from the past. Here are their top four.

It all starts here. If you haven't got wheels, you can't go anywhere or get anything! We need them for every type of vehicle. They take us to p2we have never been to and bring things fast. They’re used for operating many kinds of machines. Wheels were used as f3back as 3000 BC.

Imagine it’s extremely cold or extremely hot. If you want some water, you've got to go to the well or a pump(抽水机). Or even worse your toilet is o4 the house. Before indoor plumbing, people had to do this. Try to think about all the times you turn on the water in your home every day. The ancient Greeks c5 it nearly 4,000 years ago. Unfortunately, there are still some countries where they haven't got it.

Until 1879, candles or oil lamps were used for lighting. But then Thomas Edison developed the bulb. Walk around your home and count how many light bulbs you see. They're e6-even inside your fridge!

You might use one of these to do your homework, organize your schedule or read a magazine. But computers are also used for running things that you use every day. There are

t7computers inside cars, microwave ovens, TV sets and DVD players. Charles Babbage invented the first computing machine in 1822 but it has changed a lot since then

These are the readers' top four. What do you think is the fifth?

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