What has sometimes caused plants to die out of the past、
A.Interference from foresters.
B.Variations in climate.
C.The absence of wooded lan
D.D.The introduction of new type of plants.
试卷相关题目
- 1What does the forest strike mankind as permanent、
A.The trees are in community.
B.The forest is renewed each season.
C.Man’s life is short in comparison.
D.It is an essential part of our lives.
开始考试点击查看答案 - 2The author’s attitude toward television programs is ______ .
A.positive
B.indifferent
C.critical
D.dangerous
开始考试点击查看答案 - 3In the passage, the author tries to tell us purely entertainment programs similar to the classic “Bewitched” ______ .
A.are as good as those in the U.S.
B.have been seen on many government-controlled networks
C.are as gray and dismal as the uninformed might unnecessarily visualize
D.are not as gloomy as the uninformed might unnecessarily visulize
开始考试点击查看答案 - 4According to the passage television in USSR ______ .
A.is limited to a revenue-producing business manner
B.requires funding by commercial sponsors
C.puts away the need of commercial aid
D.is badly in need of commercial help
开始考试点击查看答案 - 5Which of the following statements is true in the eyes of the writer、
A.Applications of television are beneficial to big cities.
B.Applications of television are believed to be good activities.
C.Applications of television are restricted to television systems.
D.Applications of television do benefit to the mass entertainment field.
开始考试点击查看答案 - 6In a “primary succession”, what makes it possible for mosses to takeroot、
A.The type of rock.
B.The amount of sunlight.
C.The amount of moisture.
D.The effect of lichens.
开始考试点击查看答案 - 7What conditions are needed for shrubs to become established、
A.Ferns must take root.
B.The ground must be covered with grass.
C.More soil must accumulate.
D.Smaller plants must die out.
开始考试点击查看答案 - 8Why is a “secondary succession” quicker、
A.The ground is more suitable.
B.There is more space for new plants.
C.Birds and animals bring new seeds.
D.It is supported by the forest.[ZK)]
开始考试点击查看答案 - 9The early ship captains who visited Hawaii were ______ .
A.convinced of the usefulness of the feather cloaks
B.inclined to overestimate the availability of the feather cloaks
C.aware of the historical and cultural significance of the feather cloaks
D.curious about what the natives thought of the feather cloaks
开始考试点击查看答案 - 10The passage suggests that Hawaiian feather cloaks were made only by [CD#4] .
A.ordinary citizens
B.men of high status
C.battle prisoners
D.trader
开始考试点击查看答案
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