更多"The giant trees above the dense can"的相关试题:
[填空题]The giant trees above the dense canopy layer(树冠层) cannot enjoy sunlight.
[单项选择]Above the trees are the hills, ()magnificence the river faithfully reflects on the surface.
A. where
B. of whose
C. whose
D. which
[单项选择]Above the trees are the hills, _______magnificence the river faithfully reflects on the surface.
A. where
B. of whose
C. whose
D. which
[单项选择]
Healthy trees are important to us all. Trees provide shade, beauty, and homes for wildlife. Trees give us products like paper and wood. Trees can give us all these only if they are healthy. They must be well cared for to remain healthy.
Your trees’ trouble may be you yourself. People spend much time and money to plant and maintain trees. Trees improve the looks of homes, parks, business, and public buildings. Yet, people who love trees the most may be the ones who cause them injury. Of course, they do not do this on purpose. They are most likely not aware of the kinds of things that injure trees. There are many people-caused tree injuries. You should become aware of them and avoid them. Learn the things that can help to keep your trees healthy.
Healthy trees are beautiful. They make our world a pleasant place to live ill. Unhealthy trees are not as beautiful. They make our world less pleasant. Healthy trees help to cool and clean the air. They can even deade
A. beautiful
B. old
C. healthy
D. young
[单项选择]Dense snow cover can cause unusually harsh weather patterns to persist. If a severe winter storm blankets the Great Plains, the snow cover reflects the sun’s radiation back into space and thus keeps the temperature of the ground tow. Consequently, cold air moving down from Canada remains cold enough to cause more snowstorms.
Which of the following is a conclusion that can be properly drawn from the information above
A. Winter weather on the Great Plains is the product of unusual movements of air masses.
B. The Great Plains are more likely than other areas to suffer unusually harsh weather patterns.
C. If the Great Plains get more snow than usual early in the winter and the snow remains until the spring thaw, the winter is likely to be colder than usual.
D. Even if the temperatures on the Great Plains are not extremely cold but are just below freezing, a moderate snowstorm will probably turn into a blizzard.
E. (E) The temperature of the ground depends primarily on the thickness of the snow cover.
[单项选择]The primordial fireball would have been a dense roiling stew of radiation and elementary particles condensing out of the ______ energy, annihilating each other, recondensing, then colliding and disappearing all over again.
A. colossal
B. audacious
C. ambient
D. autonomous
[填空题]There are dense forests all over the tropical regions.
[单项选择]What happens to trees each year
A. Their tings get thinner and thinner.
B. They add a ring of wood.
C. Their rings get darker in color.
D. They become more valuable.
[填空题]Where do most tea trees come from
[单项选择]
Passage Three
Trees should only be pruned (修剪) when
there is a good reason for doing so. Many gardeners believe that more damage
results from doing it unnecessarily than from leaving the tree to grow in its
own way. First, pruning may be done to make sure that trees have
a desired shape. The object may be to get a tree of the right height, and
to help the growth of small side branches which will thicken its appearance or
give it a special shape. Secondly, pruning may be done to make the tree
healthier. You may cut out diseased or dead wood, or branches that are rubbing
against each other and thus causing wounds. A tree may grow healthier by
removing the branches that are locking up the centre and so preventing the free
movement of air. One result of pruning is that an open wound is
left on the tree and this provides an easy entry (进入) f A. to describe how pruning a tree is done B. to discuss different ways of pruning trees C. to give practical instructions for pruning a tree D. to explain how a tree wound gets diseased and heals
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