He has a large collection of books,________ are written in English.
A.many among
B.many in which
C.many ones of which
D.many of which
A.many among
B.many in which
C.many ones of which
D.many of which
Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily;but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago,a rich and powerful country cut down its trees to build warships, with which to gain itself an empire.It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒).
A、Trees and Man
B、The Function of Tree Wood
C、How do People do with Trees
D、The Usage of Tree Roots
A.because
B.although
C.for example
D.since
A.he had
B.had he
C.he has
D.has he
A.except that
B.beside
C.besides
D.except for
1.The uncle seldom spent much time in the country cottage because ______.
A.the roof of the cottage was falling
B.the cottage was in a bad condition
C.he was used to living abroad
D.there was no furniture in it
2.The word “crash” (Line 2, Paragraph 3) most probably refers to ______.
A.a cry of terror
B.a sudden ring
C.a sound of storm
D.a sudden noise
3.When they opened the bedroom door, they could see nothing at first because ______.
A.it was completely dark inside
B.dust was blown into their eyes
C.something strange blinded them
D.there was too much dust in the air
4.The narrator felt glad that he had stayed up late because ______.
A.he did not miss the exciting stories
B.he spent more time with his uncle
C.he had a lucky escape
D.he saw a strange sight
5.Which of the following can best describe the narrator’s uncle?()
A.Adventurous and good at storytelling
B.Humorous and good at making jokes
C.Good-tempered and sensible
D.Hospitable and wealthy
A.to do
B.doing
C.doing it
D.to