另外，put off + ing推迟干……。如：They put off holding the sports meet .
2. quarrel争吵；吵架
He had a quarrel with his wife about / over the housework .
〖点拨〗quarrel with sb about / over sth因为……向某人争吵
3. dare与need
dare 和 need 这两个词的用法有它们独特的地方。词性有两种而且不同的词性决定了它们不同的用法。对中学生来讲掌握它们的用法有一定的难度，无论教师从理论上如何解释，但同学们在具体运用中都会出现浮光掠影，若明若暗，零乱残缺，张冠李戴的现象。这两个词难就难在对词性的判断，它们可以作为情态动词用(其后不带 to)，又可以作为行为动词用(后面要带 to)。为了便于区分其词性和掌握用法，同学们可以采用下面的口诀帮助记忆。
〖点拨〗口诀：“dare , need 真奇怪，既行为(指行为动词)又情态(指情态动词)，是行为，把 to 带(指其后用不定式)，是情态，把 to “卖”(指其后去掉 to，只用动词原形)。若 need (= want ，require) 的主语是某物，愿与 -ing (= to be done)结姻缘。”
请做以下练习：
1） Something is wrong with my watch . It needs ____ .
A . to repair B . repairing C . repaired D . being repaired
2） I ____ to ask the teachers for advice in the office .
A . dare not B . not dare C . dare don\'t D . don\'t dare
3） He ____ come to school to give us a lecture on how to learn English .
A . need B . need to C . needs D . to need
4） She ____ do so .
A . won\'t dare B . dare not C . will dare to D . not dare
5） We ____ to think it over before we take action .
A . needing B . needs C . need D . needed
［答案与简析］1 — 5 BDABC 。第一题选B；某物作 need 的主语，后面应用动名词的主动形式表被动含义。第二题选D；dare 用作行为动词，其否定形式应为“助动词+ not dare to do sth . ”第三题选A；need 用作情态动词，其后跟动词原形。第四题选B；dare 用作情态动词，直接加 not 表示否定。第五题选C；need 用作行为动词，主语是人称代词，其后应该是 need to do sth .
高二英语第十五单元A famous detective（著名侦探）由www.yf1234.com收集及整理,转载请说明出处www.yf1234.com
www.yf1234.com 4. furniture (总称) 家具
A lot of furniture will be bought for you .
〖点拨〗furniture是不可数名词，表示件数要用量词piece / set 。如：three pieces of furniture三件家具。
5. doubt怀疑；疑虑
I have no doubt that he will pass this examination .
〖点拨〗beyond doubt = out of doubt毫无疑问。
用于肯定句时用doubt if / whether …。用于否定句时用doubt that 。
单元词组思维运用
1. have a seat = take a seat坐下
Entering the hall , he had a seat in the corner .
Have a seat and make yourself at home .
注意：have a seat用于直接引语。
2. long before = long time ago很久以前
She said that she had known your name long before .
注意：It wasn’t long before是一个常用句型，意为“不久”。before long不久以后
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高二英语第十五单元A famous detective（著名侦探）