Only after your homework watch TV. A．have you finished; you can B．you have finished; can you C．have you finished; can you D．you have finished; you can 题目和参考答案——青夏教育精英家教网—

题目内容

Only after ___ your homework _________ watch TV.

A．have you finished; you can

B．you have finished; can you

C．have you finished; can you

D．you have finished; you can

【答案】

【解析】考察倒装句，only放句首时主句要采用倒装句，所以该句倒装后面的主句。

句意为只有在你完成家庭作业以后，你才可以看电视。

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One of the main causes of the large amount of dangerous waste is that people do not realize how large a problem it is. Because it can be simply removed and sent to a landfill(废渣填埋场),the problem is often believed to end there. In addition, industries have often shown an unwillingness to find ways to deal with dangerous waste because of the related expenses. Many industries and governments build simple landfills to store waste, and often just pour waste chemicals into nearby bodies of water. Often, chemicals used for industrial production cause dangerous forms of waste.The amount of these chemicals has increased greatly in the past, but it is often difficult and expensive to get rid of these chemicals or to store them in a way safe to human life and the environment.

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Some governments have realized how serious the dangerous waste problem is and are now trying to settle this problem. They are also trying to limit the amount of waste industries are allowed to produce.

Not only governments but ordinary people as well must work together to solve the problem. They can choose not to buy those products which require the production of dangerous waste, and produce less harmful waste themselves. Many scientists think that waste production can be cut. The waste can be reduced by at least one third using existing technologies and methods.

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A．Measures of Reducing Dangerous Waste

B．Danger of Harmful Waste to Mankind

C．Dangerous Waste and Water Pollution

D．Environmental Protection

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B．do not know where to place the dangerous waste

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B．How to increase their production.

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D．How to cut down the related costs.

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B．Present technologies have settled the harmful waste problem.

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