高考英語單元知識點復習Unit 10
unit 10
理解：要點詮釋
單詞
1.prevent
講：v.阻止；阻礙；阻撓
常用結構:prevent sb./sth.from doing sth.阻止某人做某事
例:the accident could have been prevented.
這次事故本來是可以防止的。
he is prevented by law from holding a licence.
按法律規定他不得持有執照。
nothing would prevent him speaking out against injustice.
什么也不能阻止他鳴不平。
thanks to the project and the kindness of his family and neighbours,wang lin was able to receive treatment in time to prevent the disease from ruining his health.
由于這項工程以及家人和鄰居的熱心，王林才能得到及時治療，以阻止疾病損壞健康。
鏈接•提示
該短語中的介詞from在主動語態中可以省略，但在被動語態中不能省略；相似動詞還有stop,keep等，但keep sb. from doing sth.和keep sb. doing sth.不同。
練:the teacher asked more________to prevent the students’ eyes from ________.
a.to do;injuring b.done;injuring
c.to be done;being injured d.being done;being injured
提示:本題考查動詞的用法。第一個空為ask sb. to do sth.的被動形式；第二個空為prevent sb. from doing sth.的被動形式。
答案:c
2.cover
講：v.cover用作動詞時的主要義項有“遮蓋；覆蓋；包含；涉及；處理；足以支付；夠付；報道；替補(某人工作或履行職責)”。
例:much of the country is covered by forest.
森林覆蓋著這個國家的大片土地。
the wind blew in from the desert and covered everything with sand.
風從沙漠那邊吹來，把一切都蒙上了一層沙子。
the survey covers all aspects of the business.
調查包括這家企業的各個方面。
this allowance,however,is only enough to cover the most fundamental needs such as food and clothing.
然而這份補助僅夠支付衣食等基本需要。
by sunset we had covered thirty miles.
到日落時我們已走了30英里。
the cctv will cover all the major games of the tournament.
中央電視臺將報道這次錦標賽的所有重要賽事。
i’m covering jane while she’s on leave.
簡休假時我來頂替她工作。
練:（江蘇南京質檢） —will $200 the cost of________ the damage?
—i’m afraid not.i need at least 100 more.
a.do b.include c.cover d.afford
提示:本題考查動詞辨析。從句子的意思分析，此處用動詞cover表示“夠用”。