[填空题]To trade with the third world is mainly because that it is full of natural resources.

[填空题]To trade with the third world is mainly because that it is full of natural resources.

[单项选择]After our computer network （）for the third time that day, we all went home.
A. crashed
B. collided
C. smashed
D. fell

[填空题]

[听力原文]
It’s estimated that one-third of the countries of the world are very rich, and two thirds are very poor. People in the richer countries don’t understand the great differences between them and those in the poorer countries. A very simple example is that a dog or a cat in North America is better than a child in the poorer countries. A fisherman in South America may catch the fish which is made into pet food while the children in poor countries are not getting enough to eat for their bodies to grow properly. Although a lot of the world’s natural resources come from these poorer countries, it’s the richer countries that decide what kind of price they are ready to pay for these resource. And the prices the richer counties get from their exports however, are always rising. So they are getting richer and richer, and the poorer countries are getting poorer.

What percentage do the poor countries account for in the world（）

[单项选择]
Foreign trade, the exchange of goods between nations, takes place for many reasons. Every nation wants the opportunity to export its goods and services to other countries. A foreign outlet for sales enables a manufacturer or distributor to increase the volume of his business activity, thus increasing his chance to make a profit and increasing employment opportunities. Every nation also wants the opportunity and privilege of buying from foreign countries products and services that are scarce or unavailable at home that would be useful and beneficial to its people.
Trading with other countries is not the same as trading within one’s own country. At home a company or a bank is familiar with its own people, laws, and business practices. At abroad the picture becomes a complex one. Each country is different and therefore is said to carry different risks. Political risks, for example, relate to such varied f
A. it can earn more money by expanding its production.
B. the employment rate of the country will decrease.
C. the country has to find an outlet for going abroad.
D. it can buy from foreign countries products and services that are scarce or unavailable at home.

[单项选择]Third-World countries export their mineral deposits and tropical agricultural products, which bring them desired foreign exchange.（）
A. 第三世界国家出口矿产和热带农作物，以换取所需的外汇。
B. 出口第三世界国家的矿产和热带农作物可以换取所需的外汇。
C. 第三世界国家所需的外汇可以通过矿产和热带农作物的出口。
D. 第三世界国家出口矿产和热带农作物，以换取他们渴望的外国商品。

[填空题]Money laundering exists mainly because of the corruption of officials in the government.

[单项选择]The sportswear market has grown mainly because of
A. more fashionable designs.
B. cheaper products.
C. social changes.

[填空题]Shakespeare moved to London mainly because of economic reasons.