2014年4月雅思考试摸底题及答案(第三套)

　　Completion

　　Complete each sentence or statement.

　　INSTRUCTIONS: Complete the sentences with one word for each blank.

　　1. Over a period of a hundred years, millions of people took part in a mass ____________________, leaving

　　their home countries for places like the USA.

　　2. A ____________________ is a person who studies and records events from past history.

　　3. Using the Internet could cause a computer to be infected by a ____________________, which will cause

　　serious problems.

　　4. ____________________ are very poor farmers who work at subsistence level and can barely feed their own

　　families with the produce of their farms.

　　5. Countries indulge in ____________________ ____________________ when they allow international trading

　　of goods without the imposition of tariffs, taxes or duties on competitors' products.

　　6. During the great ____________________ ____________________ of the nineteenth century in Europe,

　　people changed from using manual and craft skills to the use of machines for the production and manufacture

　　of goods.

　　7. The ____________________ system existed in the Middle Ages, where poor people were given land and

　　protection by a lord when they worked and fought battles for him.

　　8. In periods of famine, people die of ____________________ because they have nothing to eat.

　　9. When people have no money, no job or prospect of a job in their own country, and they see the possibility of

　　a better life in another country, they will emigrate for ____________________ reasons.

　　10. ____________________ are people who leave their own country to live in another one.