A. population
B. available
C. university
D. education
A. support
B. repeat
C increase
D. expect
A. increase
B. government
C. journalism
D. organization
A. resource
B. average
C. decrease
D. method
A. expert
B. control
C. limit
D. injury
A. expand
B. maintain
C. approach
D. comment
A. bachelor
B. chemistry
C. refugee
D. compliment
A. photographer
B. secretary
C. psychologist
D. astronomer
A. rechargeable
B. continuous
C. appreciate
D. academic
A. interview
B. processor
C. essential
D. compliment
A. maximum
B. certificate
C. investment
D. inhabitant
A. expand
B. maintain
C. approach
D. comment
A. bachelor
B. chemistry
C. refugee
D. compliment
A. photographer
B. secretary
C. psychologist
D. astronomer
A. rechargeable
B. continuous
C. appreciate
D. academic
A. complete
B. competition
C. competitor
D. compete
A. effect
B. affect
C. effective
D. effectively
A. won
B. succeeded
C. picked
D. scored
A. preparation
B. eradication
C. promotion
D. consideration
A. want
B. wants
C. wanting
D. to want
A. correct
B. right
C. exact
D. suitable
A. required
B. applied
C. fulfilled
D. specialized
A. out of order
B. out of fashion
C. out of work
D. out of practice
A. much
B. legion
C. few
D. full
A. symptoms
B. demonstrations
C. effects
D. hints
A. relate on
B. be interested in
C. impress on
D. pay attention to
A. aiming at
B. intentionally
C. reasonably
D. with a goal
A. comparatively
B. relevantly
C. absolutely
D. almost
A. a population explosion of the magnitude as the one in the twenty century
B. a universal fear about the future of man
C. as comprehensive a study of population problems as the one envisaged now
D. so much consensus among nations concerning the population of the world
A. four billion
B. six billion
C. ten billion
D. fifteen billion
A. is expected to continue even faster until 2050
B. will not continue into the next century
C. has been going on noticeably since 1950
D. has been much faster in the industrialized countries
A. to make something equal
B. to make amounts be of higher level
C. to stop moving up or down
D. to stay at a steady level
A. various measures will have been taken to encourage population growth
B. the world population will be stabilized at around 10 to 15 billion
C. the population growth rate in less developed countries will be much higher
D. the rate of population increase will have doubled the 1950 rate
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
A. wars
B. epidemics
C. famines
D. agricultural methods
A. Improved technology
B. Disasters
C. Scarcity
D. Precaution
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
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.
A. 3 billion
B. 6 billion
C. 40 million
D 9 billion
A. The world's population dramatically decreasing.
B. Population growth in the 21th century was more than that in the 20th century.
C. Population growth in the 20th century was more than that in the 21th century.
D. In 1999, there are about 6 billion people all over the world.
A. reductions in mortality
B. early marriage
C. good health care
D. the effective use of birth control methods.
A. increased rapidly
B. decreased
C. was steady
D. was unchangeable
A. He'd rather spend his holidays on a farm than at the seaside.
B. He'd rather spend his holidays on a farm at the seaside.
C. He'd rather to spend his holidays on a farm than at the seaside.
D. He'd rather spend his holidays on a farm than on the seaside.
A. We won't survive unless we start working cleaner, safer sources of energy.
B. We won't survive unless we start work on cleaner, safer sources of energy.
C. We will survive unless we start to work cleaner, safer sources of energy.
D. We won't survive unless we start working on cleaner, safer sources of energy.
A. Heavy rain caused widespread flooding in this region lately.
B. Heavy rain has caused widespread flooding in this region lately.
C. Heavy rain had caused widespread flooding in this region lately.
D. Heavy rain was caused widespread flooding in this region lately.
A. The man will get a sentence for himself to 15 years in prison if he proves himself guilty.
B. The man was sentenced about 15 years in prison and proved himself guilty.
C. The man was sentenced to 15 years in prison because he had been proved guilty.
D. The man should make his final sentence after 15 years in prison as he proved himself guilty.
A. If you don't help me, I couldn't meet her last week.
B. If you' didn't help me, I couldn't meet her last week.
C. If you hadn't helped me, I couldn't meet her last week.
D. If you hadn't helped me, I couldn't have met her last week.
A. She hardly had begun to speak when people started interrupting.
B. Hardly she had begun to speak when people started interrupting.
C. Hardly had she begun to speak when people started interrupting.
D. She hadn’t begun to speak when people started interrupting.
A. The building burned down completely though the fire-fighters made every effort to put off the flames.
B. Had it not been for the fire-fighters’ every effort, the building would have burned down completely.
C. Making every effort to put off the flames, the fire-fighters completely burned down the building.
D. Since the fire-fighters made every effort to put off the flames, the building burned down completely.
A. When Marry was young, she loved her stuffed animal so as not to sleep with it.
B. As Marry couldn’t sleep without her stuffed animal when she was young, she loved it.
C. When Marry was young, she loved her stuffed animal though she couldn’t sleep without it.
D. When Marry was young, she loved her stuffed animal so much that she couldn’t sleep without it.
A. The fact that he has a weak heart cannot stop him practicing scuba diving.
B. Scuba diving makes him suffer from having a weak heart.
C. The reason why he cannot practice scuba diving is that he has a weak heart.
D. He has a weak heart but he continues to practice scuba diving.
A. Neither side is believed to have wanted war.
B. Neither side is responsible for the outbreak of war.
C. War is believed to be wanted by either side.
D. It is believed that war broke out from both sides.
A. Books help broaden the mind, but they provide a good source of entertainment.
B. Books help broaden the mind, and they provide a good source of entertainment.
C. Books help broaden the mind, for they provide a good source of entertainment.
D. Books help broaden the mind, or they provide a good source of entertainment.
A. Had my tutor not helped me, I couldn’t make such a good speech.
B. If my tutor didn’t help me, I couldn’t make such a good speech.
C. If it hadn’t been for my tutor’s help, I couldn’t have made such a good speech.
D. If my tutor hadn’t helped me, I could have made such a good speech.
A. I have never visited Paris before.
B. I am used to visiting Paris.
C. I used to visit Paris.
D. I have visited Paris many times before.
A. Peter encouraged his classmate to get an A in Chemistry.
B. Peter persuaded his classmate to get an A in Chemistry.
C. Peter insisted on getting an A in Chemistry for his classmate.
D. Peter congratulated his classmate on getting an A in Chemistry.
A. People rumor about going to increase the oil price by 5%.
B. The oil price is rumored to be on the point of increasing by 5%.
C. The oil price rumors to be on the point of increasing by 5%.
D. It is rumored to be going the oil price to increase by 5%.
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