题目内容

【题目】读“中南半岛山脉、河流和城市分布图”,回答下列各题。

1关于中南半岛地形、河流分布特点的说法中,正确的是( )

A. 山河相间,南北纵列分布

B. 山河相间,东西横向分布

C. 山脉、河流无序分布

D. 平原主要分布在中南半岛的北部

2根据图中信息,可以发现中南半岛大多数城市的分布特点是( )

A. 沿河流分布B. 沿海分布

C. 集中在南部平原地区D. 集中在北部山区

【答案】

1A

2A

【解析】

1读图中南半岛上的山河分布和走向可知,中南半岛上山脉、大河多由北向南延伸,具有山河相间、纵列分布的特点。

2东南亚的中南半岛上山脉、大河多由北向南延伸,具有山河相间、纵列分布的特点.城市和人口主要分布在河流沿岸和河口三角洲上。

该题考查中南半岛的地形和河流及人口分布。读图分析即可。

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【题目】

Earth's atmosphere (大气) is made of the layers of air that is around Earth. Thanks to the O2 found in the atmosphere, humans and other animals can breathe.

The atmosphere has four layers. The closest layer to Earth is the troposphere. The troposphere reaches from Earth to about 8 to 15 kilometers above sea level (平面).

It includes most of the air and O2 in the atmosphere, so all life on Earth lives here. The closer to the ground, the warmer the air is. Higher up in the troposphere, the air becomes much colder.

The second layer of the atmosphere is the stratosphere. The stratosphere reaches to around 50 kilometers above Earth. Near the top of the stratosphere is the ozone layer (丑氧层). The ozone layer helps protect life on Earth from the sun's UV radiation. Unluckily, there are holes in several parts of the ozone layer. This could cause serious problems for life on Earth.

The third layer of the atmosphere is the mesosphere. It reaches up to around 80 kilometers above Earth. The mesosphere has the coldest temperature in the atmosphere, It can be as cold as -100℃ there.

The fourth layer is called the thermosphere. It reaches up to around 600 kilometers above Earth. This is where outer space begins. The international space station runs around the planet from this layer. The temperature here is very high. It gets up to 1,200℃.

1The troposphere goes up to around ____________ above the Earth.

A. 8-15 kilometersB. 50 kilometersC. 80 kilometersD. 600 kilometers

2The ______________ is the coldest layer in the atmosphere.

A. troposphereB. stratosphereC. mesosphereD. themosphere

3According to the passage, which of the following statements is TRUE?

A. In the troposphere, the closer to the ground, the colder the air is.

B. The ozone layer could cause problems for life on Earth.

C. Outer space begins from the mesosphere.

D. The temperature in the thermosphere can be 1200℃.

4Which of the following shows the structure (结构) of the passage? (P: Paragraph)

A. B. C. D.

5________________ may be the best title of the passage.

A. What Makes up the AtmosphereB. Where Is the Atmosphere

C. The Distance of the AtmosphereD. The Temperature of the Atmosphere

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