高一英语:知识点总结Unit3-4(5)
5. cost的用法
▲ 构词：costly adj. 昂贵的，贵重的
▲ 搭配：
① cost sb. sth. 花费某人(多少钱);让某人付出(代价)/牺牲……
② at all costs 不惜任何代价.无论如何
③ at any cost 不惜任何代价，无论如何
④ at cost (price) 按成本价格，按原价
⑤ at the cost of 以……为代价，用……换来的;丧失;牺牲
【考例】They wondered how much this kind of car would ____ them.
A. pay B. spend C. cost D. waste
[考查目标] 本题考查cost和它的几个近义词的区别。
[答案与解析] C cost的意思是“耗费”，主语是指物的
名词.而pay和spend等的主语是指人的名词。
6. effect n. 效果;作用
have an effect on sth.
His words had a great pushing effect on his students.
(1) be of no effect 无效
(2) come into effect 开始生效;开始实行
[比较] affect vt. 影响 The climate affected the amount of the rainfall.
7. experience的用法
▲构词: experienced adj. 有经验的，熟练的
▲搭配:
① by experience 凭经验;从经验中
② from experience 凭经验;从经验中
③ gain experience in… 获得……经验
④ be experienced in… 某方面有经验
▲友情提示: experience这个词作为可数名词用时，解释为“经历”，作为不可数名词用时解释为“经验”。
【考例】 (2005山西模拟) ____teaches that he was right. Good friendship is just not easily formed.
A. Knowledge B. Teachers C. Experience D. Parents
[考查目标] experience的意思。
[答案与解析] C experience常为不可数名词，意思是“经验”。
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