读我国某区域图，回答下列问题。（1）描述图中200毫米等降水量_爱下问搜题

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问题综合

读我国某区域图，回答下列问题。

（1）描述图中200毫米等降水量线的分布特点并说出其影响因素。

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（2）试分析图中阴影部分农业发展的优越自然条件。

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（3）根据自然条件，指出图中农业发展应注意的问题有哪些？

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（4）据新华社报道，图中A城市决定建设“山水园林城市”，计划在该市附近建立一个面积大约是西湖5倍的人工湖。你认为这种做法对吗？并从地理角度进行分析。

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答案

（1）东部等降水量线大致与海岸线平行，说明受海陆因素影响；西部等降水量线在山地向北弯曲，说明受地形影响。

（2）光照充足、地形平坦、土壤肥沃、有灌溉水源。

（3）这里降水量少，水源相对紧张，应注意发展节水农业；蒸发量大，注意合理灌溉，以免导致土壤盐碱化。

（4）不对。这里年降水量不到200mm，蒸发旺盛，连农业发展也需要从黄河引水，水资源紧张，缺乏人工湖所需水源；该地区蒸发旺盛，人工湖会使本来紧缺的宝贵水资源因蒸发加强而浪费掉；修建人工湖后，可能会导致地下水位的升高，易导致土壤次生盐碱化。

单项选择题

基站发射功率检查与调整一般每（）进行一次。

A.月

B.季度

C.半年

D.年

完形填空

My husband Mike hated Christmas. He didn’t hate the true meaning of ___36___, but the commercial aspects (方面) of it. Knowing he felt this ____37__, I decided one year to__38__the usual shirts, sweaters, ties and so on. I reached for something __39_just for Mike. The idea came in an unusual way.
　　 Our son Kevin, who was 12 that year, was____40__at the junior level at the school he attended and shortly before Christmas, there was a non-league match___41____a team sponsored（资助） by a church.
　　 These youngsters from the church, dressed in shoes so____42___that shoestrings(鞋带) seemed to be the only thing holding them together,___43_____our son’s team were in their beautiful new wrestling shoes.
　　 As the match began, I was___44___to see that the other team was wrestling without a helmet(头盔) designed to___45____a wrestler’s head. They clearly could not____46___ them. Well, our son’s team ended up defeating them and took every weight class. But as the other team ____47__up from the mat(垫子), they walked around with a sense of pride that couldn’t admit___48____.
　　 Mike, seated beside me, shook his head___49___, “I wish just one of them could have won,” he said. “They have a lot of potential(潜力), but___50___like this could take the heart right out of them.” Mike loved__51____and he knew them, having coached little league football, baseball. That’s when the __52____for his present came. That afternoon, I went to a local sporting goods store and ___53____some wrestling helmets and shoes and sent them to the church.
　　 On Christmas Eve, I placed the envelope on the tree, the note inside telling Mike what I had done and that this was his____54___from me. His smile was the____55___ thing about Christmas that year.

B．an envelope

C．the wrestling

B．expensive　

B．weightlifting

B．against 　　

B．disappointed

B．surround　　

B．dressed 　　

B．evidence　　

B．winning 　　

B．parents 　　

B．idea 　　

B．sold 　　

B．warning 　　

B．funniest　