题目内容

【题目】下列农产品中,主要产自泰国的是( )
A.椰子、稻米
B.棉花、羊毛
C.椰枣、棕油
D.小麦、咖啡

【答案】A
【解析】东南亚是世界上天然橡胶、油棕、椰子和蕉麻的最大产地.东南亚各国普遍种植水稻,稻米是当地居民的主要粮食,也是传统的出口产品.泰国、越南、缅甸是世界上重要的稻米出口国,泰国位于东南亚地区,主要的农产品有椰子、稻米等,故A正确.

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【题目】In the past 200 years,the earth's temperature has increased greatly.It's reported that a marked increase in the temperature of about 0.7 appeared at the end of last century.Some scientists think mini-umbrellas(微型伞)might reduce the global(全球的)temperature.

Building a single umbrella,which is big enough to cover the whole earth,seems to be impossible.Roger Angel,a scientist from the USA,has carried out research to deal with this problem.He came up with an idea of mini-umbrellas.In fact,each mini-umbrella is made up of two parts,a spaceship and a sunshade(遮阳篷).A spaceship weighing about 1g would carry a sunshade that is half a meter long.It would be mostly transparent.That means light can pass it directly to reach the earth,with lands and oceans clearly in view.

Pressure(压力)from the sunlight would keep the little spaceships in position around the earth at a distance of about 1.5 million kilometers.As a result,sending over 1,000 billion mini-umbrellas into space would reduce the amount of sunlight reaching the earth.This allows sunlight to be reflected(反射)back to space easily,causing the temperature of the earth's ground to fall off.Covering large areas of the earth,mini-umbrellas together could reflect 1.8 percent of sunlight back.In Roger's plan,scientists will send up 800,000 mini-umbrellas at a time,20 million times in all during ten years.Scientists suggest the earliest launch could be in just 16 years.

Not all the scientists agree with the idea.Some suppose there should be easier and much cheaper ways to prevent the earth from getting too hot,such as to slow down the pollution people bring and to reduce the human activities.Whatever the result of the argument is,this idea of mini-umbrellas in space is certainly creative.

1The underlined word“transparent”here probably means “ ”.

A. 透明的 B. 透气的 C. 透风的

2Picture shows the right information about the mini-umbrellas.

A. B. C.

3After scientists send over 1,000 billion mini-umbrellas into space, .

A. pressure from the sunlight would allow the mini-umbrellas to be reflected back to space easily

B. the mini-umbrellas would reduce the amount of sunlight reaching the earth

C. sunlight would never come into the earth

4Which of the following is NOT true according to the passage?

A. Scientists suggest that the earliest launch could be in just 16 years.

B. A spaceship weighing about 1g would carry a sunshade.

C. Roger will send up 800,000 mini-umbrellas into space during 20 years.

5The best title for this passage should be .

A. THE TEMPERATURE OF THE EARTH

B. A MINI-UMBRELLA PLAN

C. CHEAPER WAYS TO PREVENT THE POLLUTION

【题目】某班同学对中国、美国和俄罗斯三国开展研究性学习,拟定两个研究课题,课题A:“俄美自然地理特征研究”,课题B:“中美经济合作研究”。请根据材料和相关知识,回答下列问题:

材料一 2018年5月17日~18日,中美两国代表团在华盛顿就双边贸易问题进行了建设性磋商并发表联合声明:不打贸易战,停止互相加征关税,两国将继续加强高科技产品和农产品等领域的贸易合作。

材料二 美国和俄罗斯地图。

(1)俄罗斯、美国东西都濒临海洋,两国降水都主要来自_____洋,两国的分界线是______海峡。

(2)伏尔加河是俄罗斯的“母亲河”,注入___海;美国中部的____河是世界第四长河,为农业生产提供了丰富的灌溉水源。

(3)俄罗斯由于纬度较高,大部分地区气候______(特点),因此农业生产受到制约,粮食需要进口;美国农业生产的自然条件十分优越,农业实现了现代化和区域化生产,粮食大量出口,五大湖附近的①__(农业带)形成的社会经济原因是__

(4)俄罗斯有“天然气王国”之誉,通过___(运输方式)把石油、天然气出口到中国。

(5)美国“硅谷”位于②___(城市)的东南部,这里的每一项重要发明,都会影响到世界电子工业的发展。中国第一个高新技术产业开发区位于北京的_____科技园。

(6)下列叙述错误的是____

A.③是棉花带,这里热量充足,是历史上黑色人种奴隶最集中的地区

B.④是贝加尔湖,是世界上最深的淡水湖

C.⑤是海港摩尔曼斯克,终年不冻,原因是受北大西洋暖流的影响

D.⑥是西西伯利亚平原,是俄罗斯重要的农业区

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