题目内容

【题目】读我国冬、夏季节风向示意图,分析回答问题。(共14分)

(1)受海陆位置和纬度位置的影响,我国大多数地区冬、夏季节盛行风向________(填:相同或相反),这种风向随季节而显著改变的现象称为________气候。

(2)据图可知,我国的降水集中在________(季节),如果夏季风活动不稳定,容易 导致的气象灾害是___________________。

(3)如果冬季风活动强烈,容易形成________(灾害性天气);四川盆地受冬季风影 响________(填:大或小),主要原因是___________________________________。

【答案】

(1)相反 季风

(2)夏季(夏秋); 水灾、旱灾(或干旱、洪涝灾害)

(3)寒潮 盆地地形阻挡了外部冷空气的入侵

【解析】

试题分析:

(1)读图可知,受海陆位置和纬度位置的影响,我国大多数地区冬、夏季节盛行风向相反,把这种风向随季节而显著改变的现象称为季风气候。除青藏高原外,习惯上以大兴安岭阴山贺兰山为界,把我国划分为季风区和非季风区。我国的气候类型,主要包括热带季风气候、亚热带季风气候、温带季风气候、温带大陆性气候以及高原山地气候。

(2)受纬度位置和海陆位置的影响,我国大多数地区一年内的盛行风向随季节有显著变化,形成了典型的季风气候。冬季风寒冷干燥,是我国冬季南北温差大的主要原因之一;夏季风温暖潮湿,形成了我国的雨季。我国的降水集中在夏季,其水汽来源于太平洋和印度洋。如果夏季风活动不稳定,容易导致的气象灾害是水灾、旱灾。

(3)冬季,我国盛行西北风和东北风,冬季风寒冷干燥,是我国冬季南北温差大的主要原因之一。如果冬季风活动强烈,容易形成寒潮;四川盆地受冬季风影响小,主要原因是地形阻挡了外部冷空气的入侵。根据题意,故答案为:(1)相反;季风;(2)夏季;水灾;旱灾;(3)寒潮;小;地形阻挡了外部冷空气的入侵.

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Sometimes people call ours a“throw—away society”That means we are always throwing away old things and buying new onesMany timesif you no longer need somethingsomeone else just might need itFor exampleif your brother is old enough not to play with his plastic bikewhy not give it to another family who has a little kid so that they don’t need to buy oneAnd one less large plastic toy doesn’t need to be produced

Recycling(回收利用)has never been easierMany organizations will pick it up right in front of your house and some towns even require(要求)itTell your mom or dad you want to become“Chief of Recycling”for your familyNow that you know what things you can recyclefind a place to keep themMake sure you encourage everyone in your house to think whether things can be reused or recycled before they’re thrown away

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1In the first paragraphthe writer introduces the topic of the passage by________

A. telling an interesting story

B. explaining the word“green”

C. giving some special examples

2In a“throwaway”society________

A. people shouldn’t produce any plastic things

B. people can get anything they want from others

C. people always throw away the used things and buy new ones

3To be“Chief of Recycling”you should________

A. recycle things all by yourself

B. ask your family to use the old things all the time

C. find a place to keep the things that can be recycled

4You are advised to run a fruit or vegetable garden in order to________

A. creat a green environment

B. make a lot of money

C. get your hands dirty

5The purpose of the passage is to tell us that________

A. we must enjoy nature

B. we had better eat more green food

C. we should protect our environment

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