Bài tập Tiếng Anh Lớp 11 - Unit 7: World population

UNIT 7	WORLD POPULATION
I. Choose the word that has the underlined part pronounced differently from the others.
a. limit 	b. figure 	c. iron 	d. billion
a. great 	b. available 	c. raise 	d. said
a. decreased 	b. used 	c. reached 	d. developed
a. program 	b. earth 	c. birth 	d. produce
a. double 	b. govern 	c. punish 	d. control
Choose the one word or phrase -a, b, c, or d-that best completes sentences.
Like many other baby birds, ducklings are blind _______ birth.
a. of 	b. at 	c. on 	d. from
Lack _______ food had stunted his growth.
a. of 	b. in 	c. for	d. on
Nigeria has a population _______ nearly 100 million.
a. about 	b. in 	c. of 	d. with
The rapid growth of population led to an acute _______ of housing.
a. shortfall 	b. shortcut 	c. shortcoming 	d. shortage
The population of the world is growing at a dangerous _______.
a. amount	b. rate 	c. figure 	d. way
One third of the world's population _______ two thirds of the world's resources.
a. drains 	b. absorbs 	c. consumes 	d. supports
Better health care and agriculture have led to rapid population _______.
a. grow 	b. growing 	c. grown 	d. growth
Pressure on natural resources will _______ as we face a population explosion.
a. increase 	b. decrease 	c. decline 	d. raise
Her first novel has been _______ acclaimed as a masterpiece.
a. nation 	b. national 	c. international 	d. internationally
Our school has managed to collect a lot of books to _______ to the children in a village school.
a. publish 	b. distribute 	c. employ 	d. depart
III. Choose the one word or phrase -a, b, c, or d- that best completes the sentences.
If the technology _______ available, we would be able to expand the business.
a. would become 	b. were become 	c. had become 	d. Became
If the North Sea _______ in winter, you could walk from London to Oslo.
a. happened to freeze 	b. froze
c. should freeze 	d. should happen to freeze
It would have been a much more serious accident _____ fast at the time.
a. was she driving 	b. had she been driving
c. she had driven 	d. if she drove
If you _______ to my advice in the first place, you wouldn't be in this mess now.
a. listen 	b. will listen 	c. had listened 	d. listened
I'll give you a lift if it _______.
a. is raining 	b. rained 	c. will rain	 	d. had rained
If I _______ a more reliable car, I ' to Spain rather than fly.
a. would have - would drive 	b. had - had driven
c. had - would drive 	d. would have had - would drive 
I _______ you sooner had someone told me you were in the hospital.
a. would have visited 	b. had visited 	c. visited 	d. visit
They couldn't decide _______ it was worth re-sitting the exam.
a. if 	b. whether 	c. if or not 	d. whether not
_______ how difficult the job was, I mightn't have taken it.
a. If I know b. If I would know 	c. Did I know d. Had I known
____ in my seventies and rather unfit, I might consider taking up squash.
a. Were I not 	b. Was I not 	c. Weren't I 	d. If I am not
IV. Identify the one underlined word or phrase -A, B, C or D-that must be changed for the sentence to be correct.
Some scientists believe that the earth have resources enough to support its population.
 A B C D
The population of the world has been increased faster and faster.
 A B C D
Ninety-seven percent of the world' water is saltwater is found in the oceans of the Earth.
 A B C D
Hadn't he resigned, we would have been forced to sack him.
 A B C D
John lived in New York since 1960 to 1975, but he is now living in Detroit.
 A B C D
V. Fill in each blank space with one appropriate word from the box. 
mortality 	expanding growth 	increasing 	reach 	decline
population 	 even slightly 	life 	variations 	available
Projections issued in 2000 showed the world population (31) ______ from 6.1 billion in 2000, to 7.9 billion in 2050. "High" and "low" projections for 2025 are 8.4 billion and 7.5 billion respectively. The average world birth rate is projected to (32) ______ from the 1990 level of 26 per 1,000 to 22 per 1,000 at the .end of the century and to 17.6 per 1,000 in 2025 (corresponding to a fall in TFH from 3.3 in 1990 to 2.1 in 2025). Because of the (33) _______ share of the population at high-mortality ages, the average world death Tate is expected to decline only (34) _______; from 9 (per 1,000) in 1990 to 8.4 in 2025. Average world (35) _______ expectancy, however, is projected to rise from 65 years in 1990 to 71.3 years in 2025. Wide (36) ______ in population growth will undoubtedly persist. In the developed world, population growth will continue to be very low and in some nations will (37) _______ decline. Western Europe as a whole is projected to have a declining population after 2000. U.S. Census Bureau projections, assuming middle fertility and (38) _______ levels, show U.S. (39) _______ increasing from 250 million in' 1990 to 349 million in 2025 and 420 million in 2050. Thereafter, (40) ____ would be virtually zero.
VI. Read the passage, then choose the correct answers.
No one knows the limits of population that the earth can support. Thomas Malthus, an English economist, developed a theory that became widely accepted in the nineteenth century. He suggested that because world population tended to increase more rapidly than the food supply, a continual strain was exerted upon available resources. Malthus cited wars, famines, epidemics, and other diseases as the usual limitations of population growth.
With recent advances in science and technology, including improved
agricultural methods and great strides in medicine, some of the limiting factors in population growth have been lessened, with obvious results.
International organizations have put forward several recommendations to alleviate the problem of overpopulation, including an increase in food production, general economic development in target areas, and a decrease
in birth rate. Most experts agree that it will be necessary to combine all three recommendations in an effort to affect a lasting solution.
It was suggested by Thomas Malthus that _______.
a. food was in short supply because of population increase
b. The rapid growth of population led to an acute shortage of natural resources
c. Rapid population growth put a great strain on available resources
d. Pressures on natural resources will increase as we face a population explosion
Which of the following was not mentioned as the usual limitations of population growth? 
a. wars 	b. epidemics	c. famines 	d. agricultural methods
According to the passage, why has overpopulation been caused?
a. Improved technology b. Disasters 	 c. Scarcity	 	d. Precaution
What do most experts recommend in order to solve problems of overpopulation?
a. Famine and epidemic b. Economic development and a decline in birth rate
c. Medical advance and improved agricultural methods d. Conservation of available resources
Which of the following is not true according to the passage?
a. The earth have enough resources to support all of its population.
b. The theory developed by Thomas Malthus was believed by most people in the 19th century.
c. Medical advance has lessened some of the limiting factors in population growth.
d. International organizations arc seeking a lasting solution to the overpopulation problem.
VII. From the four phrases -a, b, c or d- choose the one that best completes the sentence.
_______ daily promotes physical as well as emotional well-being in people of all ages.
a. Having exercised 	b. Those who exercise
c. For exercising 	d. Exercising
Not until the seventeenth century ______ to measure the speed of light.
a. anyone did even attempt 	b. did anyone even attempt
c. did even attempt anyone 	d. even did anyone attempt
It is a fact that _______ form of energy.
a. electricity being the most useful 	b. electricity the most useful
c. the most useful in electricity	d. electricity is the most useful
After seeing a movie based on a novel, _______.
a. many people want to read the book	b. the reading of the book interests many people.
c. the book was read by many people	d. the book made many people want to read it
When _______ is not known.
a. was the wheel invented 	b. the invention of the wheel
c. the wheel was invented	d. it was invented the wheel
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