4.        ，the order of the pollution level remained same and the pollution extent

is quite close. (previous)

與上年相比，污染輕重順序未變，污染程度卻很相近。

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18. Hardly had he got out of the court                  a lot of questions to him.(raise)

他剛一走出法院記者們就向他提出了很多問題。

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9.When the kings        ，they perhaps never imagined this would happen.(build)

 當(dāng)國王們請人為自己建造金字塔時，他們也許從來不會想到這樣的事會發(fā)生。

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  A super drug that could remove Alzheimer's(癡呆癥) ，heart disease and diabetes(糖屎病) and help people live to 100 is being developed by scientists. Their research is based on the iden?tification of three genes that improve long and healthy lives and prevent diseases of aging. Medi?cally controlling the proteins made by the " longevity genes" will allow millions to live longer, predicts Nir Barzilai.

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  Already，several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage the old people. "The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing," he said. "The biology we're trying to uncover is that if we can imitate that,long life can be really terrific."

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  But Andrew Ketteringham, of the Alzheimer's Society, said. " Alzheimer's disease, a most common disease, is likely to be caused by a combination of genetic disposition(遺傳傾向) ，lifes?tyle and life events. Many genes are probably involved.”

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   C.  having no disease   D. once being sportsmen

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   A.Because it can bring great benefits to economic development.

   B.Because it can help people change their unhealthy genes.

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9.        to help restore aquatic ecosystems harmed from over-extraction. (recycle)

回收利用的廢水也可以用于幫助恢復(fù)被過分壓搾而受傷害的水中的生態(tài)系統(tǒng)。

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 One Saturday morning after breakfast, I returned to my dormitory and saw the house parent chasing the beautiful butterflies, hundreds of which lived in the bushes around the orphanage. I carefully watched as he caught these beautiful creatures, one after another, and then took them from the net and stuck straight pins through their head and wings,pinning them onto a heavy cardboard sheet.

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