【单选题】【消耗次数：1】
Its ( ) that he has been away from home.
①
evident
②
important
③
genuine
④
alternative
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【单选题】
The garden ____ while the Greens were away from home.
①
took good care of
②
was taken good care
③
was taken good care of
④
was taking good care
【单选题】
The garden _______while the Greens were away from home.
①
took good care of
②
was taken good care
③
was taken good care of
④
was taking good care
【单选题】
He has been writing the essay the whole morning and he still ＿＿＿ .
①
has been
②
does
③
has
④
is
【单选题】
He has been writing the essay the whole morning and he still ＿＿＿ .
①
has been
②
does
③
has
④
is
【单选题】
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)．Why did the country mentioned in the passage suffer from floods and starvations?
①
Because it set up an empire.
②
Because it fell to pieces.
③
Because it turned its trees into warships.
④
Because it spent too much money on wars.
【单选题】
This job is great ( ) advancement, but its too far away from my hometown.
①
in terms of
②
as a result of
③
based on
④
on behalf of
【单选题】
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)．According to the passage, which is the most important service of trees to man?
①
They help him make money.
②
They give him cool.
③
They give him wood and other things.
④
They help him to stop droughts and floods.
【单选题】
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)．In many places forests slowly disappear because __________.
①
many trees have been cut down by man
②
new trees are not well looked after
③
man has not paid enough attention to planting trees
④
all the above
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