题目内容

【题目】六大板块示意图,完成下列要求。(9分)

(1)板块名称:

A__________ B_______ D____________ E______________

(2)六大板块中,几乎全部是海洋的是_______ 板块(填字母)

(3)地中海的面积在______________(扩大或缩小),原因是_______________________

(4)喜马拉雅山是_________ 板块和__________ 板块碰撞挤压而成的。

【答案】

(1)非洲板块;印度洋板块;太平洋板块;美洲板块

(2)D

(3)缩小;非洲板块与亚欧板块相互碰撞挤压

(4)亚欧;印度洋

【解析】

试题分析:

(1)板块运动学说认为,由岩石组成的地球表面并不是一块整体,而是由亚欧板块、太平洋板块、非洲板块、美洲板块、印度洋板块和南极洲板块六大板块拼合而成。据图可知:A为非洲板块;B为印度洋板块;D为太平洋板块;E为美洲板块。

(2)据图可知:在世界的六大板块中,D太平洋板块几乎都位于大洋上,是几乎全部是海洋的板块。

(3)板块运动学说认为,组成地表的各大板块处于不停的运动中。一般来说,板块内部地壳比较稳定;板块与板块的交界地带,地壳比较活跃,容易形成火山、地震。地中海位于非洲板块与亚欧板块的交界地带,由于板块的相互碰撞挤压,导致地中海的面积在不断缩小。

(4)板块运动学说认为,组成地表的各大板块处于不停的运动中。一般来说,板块的内部地壳比较稳定,板块与板块交界的地带即板块边缘地带,有的张裂拉伸,有的碰撞挤压,地壳比较活跃,容易形成火山、地震。喜马拉雅山是由亚欧板块和印度洋板块碰撞挤压,导致地壳抬升而成。

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【题目】B

On Lunar New Years Eve on Feb 18, 2015, Beijing had a good day. PM2. 5 levels were below 50. However, the nice day ended with firework celebrations at night.

In the first hour after the start of the celebration, PM2. 5 levels rose to 500 in certain parts of the city, with the average across the city around 400.

According to the China National Environmental Monitoring Center, on Lunar New Years Day, air pollution reached dangerous levels in 201 Chinese cities, because of fireworks, with more than 40 of them seeing serious pollution. As a result, the debate on whether to ban (禁止) fireworks during the Spring Festival is also heating up.

Sina surveyed 3,000 Internet users, and results show that only 38 percent of the people support setting off fireworks, and 60 percent are against it.

I support a ban on fireworks, a netizen (网民) nicknamed ann019 said. Lighting fireworks can only bring problems: air pollution, disturbing sleep, causing fire and exhausting sanitation workers (环卫工人).

Others thought it to be hard to ban traditions, and lighting fireworks during holiday seasons wont cause lasting pollution.

Some, however, suggest a moderate (温和的) way to solve the problem.

As a tradition, fireworks absolutely add to the festivals happiness. They shouldnt be banned totally, commented netizen Tracy on the China Daily online forum (论坛). But the time /span>should be reduced. For example, it can be allowed just during New Years Eve, the first day of the Lunar New Year and the Lantern Festival.

【1】___________________ caused serious air pollution on Lunar New Years Eve.

A. The factories B. The cars

C. The fireworks D. The bad weather

【2】 ___________________ cities saw serious air pollution on Lunar New Years Day.

A. 201 B. More than 40

C. Around 400 D. 500

【3】According to Sinas survey, over half of the Internet users ___________________ setting off fireworks.

A. are against B. enjoy

C. support D. dont care about

【4】___________________ was not mentioned by the netizen nicknamed ann019.

A. Exhausting sanitation workers B. Disturbing sleep

C. Wasting money D. Causing fire

【5】According to the passage, we know ___________________ is a moderate way to solve the problem.

A. to ban fireworks totally

B. to reduce the time of setting off fireworks

C. to get more people to set off fireworks

D. to never change the tradition

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