74. Which of the following is true?

A. the richer the country is, the faster the population increase.

B. Birth control is the most important way to control the growth of population.

C. the population in the developed countries is increasing faster than that in the underdeveloped countries.

D. It is impossible to control the increase of the population.

73. The population of the world doubled between the year _______.

A. 1850 and today　 　　　　　　 B. 100 and the year 1400

C. 100 and the year 1600　　　 　　 D. 1 and the year 100

72. The population _______ because of disease, famine and war.

A. didn't increase　　　　　　　　 B. became less

C. increased slowly　　　　　　　　　　 D. still increased very fast

71. According to the passage, if we talk about a man of refinement, you may guess that he must be _______.

A. a man having good manners and education

B. a person who should be educated

C. somebody having bad manners

D. a person punished by somebody else

E

It is believed that it took about 800 thousand to 1 million years for the earth's population to reach the 250 million total which existed at the end of the first century AD. For some time after that, disease, famine(饥饿)and war kept the population increase down to a rate of 1 percent a year so that more than 15 centuries passed before the population reached 500 million. But in the next 250 years, up to 1850, the population of the world shot to 1 billion and today it has reached 3. 5 billion. Scientists say that in the next 35 years the population of the world will double, reaching almost 7 billion by the year 2010.

When experts are asked what are the most effective measures that can stop over population, they reply that at least three measures can be considered.

(A)Increasing sources and supply of food for under-developed countries.

(B)Increasing the industrialization of under- developed countries.

(C)Controlling birth.

The experts add, however, that none of the above measures can be effective by itself, and that all must be combined into one whole program. They also agree that without controlling of births, any other measures are doomed(注定)to failure.

70. We can get a noun _______.

A. just by adding "er" to verbs　　 　　　 B. by changing a prefix

C. only by adding "er" to a root　　 　 D. by adding a suffix to a verb

69. By adding a prefix or a suffix to a root, we can get a word which has _______.

A. the meaning of a Latin word　　　　　 B. a different meaning

C. the meaning of "in" or "out of"　　　 　　 D. a lot of meanings

68. In the first sentence the word "part" means _______.

A. different beginnings and different endings

B. the same part that has several meanings

C. the root of the word

D. the same root that has different meanings

67. When flying, the Goliath steers by_______.

A. turning its soft back wings

B. twisting and turning its hard front wings

C. twisting and turning its legs

D. twisting and turning its whole body

D

Some English words are made up of the same part and have different beginnings and different endings, such as import, export, report and transport. All these words, you can see, have the same "port", which come from the Latin word, meaning "to carry" or "to move" from one place to another. And according to the bit at the beginning, which we call the prefix the meaning changes. "Import" means "to carry in" or "to bring into a country", "export", "ex" means "out of", so this word means "to carry out of the country", "re" means "back", so the "report" means "to tell somebody, to bring back information to somebody", "transport", "trans" means "across" and it means "to carry across one place to another".

Let's look at the following words: supporter, reporter, importer and exporter. You can see that in this case these words are nouns which are made up of the verbs plus a suffix, thus meaning a person who completes the verb. So supporter means somebody who supports. A reporter is somebody who reports. Importer is somebody who imports and exporter is somebody who exports, and so on.

66. We know the Goliath beetle is a true insect because it _______.

A. makes a whirring sound when it flies　　 　　　 B. has both soft and hard wings

C. has six legs and a body with three parts D. can fly