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1. The studies show that the driver who has consumed an amount of alcohol within the limit is likely to have an automobile accident than the driver who does not take any alcohol.
A. not so B. not much C. no less D. no more
2. If someone is dying of cancer and begging to be put out of his or her misery, and someone gives that person a deadly dose of morphine, that seems merciful criminal.
A. nevertheless B. otherwise
C. or else D. rather than
3. When we arrived, he found the aged and the sick at home.
A. none but B. none other than
C. nothing but D. no other than
4. I hope all the precautions against air pollution, are suggested by the local government, will be seriously considered here.
A. as B. while C. after D. since
5. Most of is on American television are programs designed to appeal to people who go into the supermarkets and buy the products that are advertised on TV.
A. which B. that C. whatever D. what
1. Dno more…than…“不比……更……”。此句意為：“研究表明，喝了酒但不過量的司機可能出車禍，不喝酒的司機也同樣可能出車禍?！?BR> 2. Drather than起并列作用，使merciful與criminal形成平行結(jié)構(gòu)，表示對比。
3. Anone but相當(dāng)于no one but“只有”，通常接表示人的詞;nothing but接表示物的詞;none other than和no other than兩者的意思都是“(不是別的)……正是……”，與本題全句意思不符。
4. Aas在句中是關(guān)系代詞，引導(dǎo)非限定性定語從句，其先行詞是precautions，其他幾個選項都不是關(guān)系代詞，所以是錯誤的。
5. Dwhat是關(guān)系代詞，引導(dǎo)名詞性從句，同時又在從句中充當(dāng)一個成分，如在本句中做從句的主語，整個名詞性從句做介詞of的賓語;which只能引導(dǎo)形容詞性從句;that引導(dǎo)名詞性從句時，只是連詞;whatever用在句中不通。