题目内容

【题目】It was perfectly all right,he said,because the police ________him of anything.

A.hadn't suspected B.hasn't suspected

C.will suspect D.didn't suspect

答案 A

【解析】考查动词时态。此处suspect发生在was表示的状态之前,故使用过去完成时。

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【题目】

Two things I really believe in—saving money and saving the planet,and it's even better when I can do something that accomplishes both at the same time.

Rainwater harvesting is just such a thing.In the near future,rainwater harvesting will be as common as twelveyearold girls carrying cell phones.

Many countries already rely heavily on rainwater.Bermuda,for example,every building on the small island collects the rainwater from its roof and stores it for later use.However,America_is_just_slightly_behind_the_curve.

There are many ways you can begin harvesting rainwater and most of them are easy and inexpensive.Use rain barrels to collect the water that would run off of your roof.You'd be surprised how fast a fiftygallon barrel will fill with free,usable water.New building construction offers some good ways to gather rainwater,and the cost of installation is usually offset by reduced usage very quickly.Roof drains can be piped into underground tanks,where a pump can draw it up as needed.

The rainwater can even be treated to make it drinkable...but wait—there's more!If that rainwater were not collected,but allowed to run over your lawn,into the street and eventually to a stormwater treatment facility,it would pick up all sorts of pollutants on its journey—fertilizers and pesticides from the grass,motor oil,antifreeze and such from the roads,and who knows what else.

Depending on where you live,the stormwater may be piped to a treatment plant or it may run in natural channels to allow nature to remove the pollutants.Either way,the treatment of stormwater is costly.If you reduce the amunt of stormwater runoff from your home or office,you reduce the need for treatment.

Water is rapidly becoming one of our most precious resources and it is not as abundant as you may think.In the year 2000,the United States used approximately 326 billion gallons of fresh water per day.

【1】What does the underlined sentence “America is just slightly behind the curve” mean?

A.Americans don't show interest in harvesting rainwater.

B.There is no need for Americans to harvest rainwater.

C.Harvesting rainwater in America is not that common.

D.Americans can't collect rainwater from the roof correctly.

【2】According to the passage,harvesting rainwater can ________.

A.benefit you economically and ecologically

B.benefit your health and the surroundings around

C.promote the development of economy and peace

D.make us live a better life in the near future

【3】What is the fourth paragraph mainly concerned with?

A.How to take advantage of the rainwater.

B.How to fix the equipment under the ground.

C.How to reduce the cost of new equipment.

D.How to harvest rainwater effectively.

【4】It can be inferred from the passage that ________.

A.it is not easy to make rainwater drinkable

B.the author calls on people to harvest rainwater

C.the stormwater cannot be made drinkable

D.people can treat the stormwater very easily

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