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1、Unit 6 When was it invented?,课前预习,Section B,一、重点单词 1. _ 咸的 2. _ 酸的；有酸味的 3. _ 顾客；客户 4. _ 加拿大的；加拿大人的；加拿大人 5. _ 分开；分散 6. _ 篮；筐 7. _ 英雄；男主角 8. _ 职业的；专业的,salty,sour,customer,Canadian,divide,basket,hero,professional,二、重点短语 1. _ _ 错误地；无意中 2. _ the _ 最后；终于 3. _ _ 薯片 4. _._. 把分为 5. _ the _ _ 与此同时 6. _ sb. _
2、_ 教某人做 7. _.from _ 阻止做 8. _ _.,_ also. 不仅，而且,by,mistake,in,end,potato,chips,divide,into,at,same,time,teach,to,do,stop,doing,not,only,but,9. _ _ of. 的数目 10. _ _ _ 钦佩；仰慕 11. _ sb. _ _ 鼓励某人做 12. _ _ dream实现某人的梦想 13. _ _ groups职业篮球队 14. _ _ 超过；多余,the,number,look,up,to,encourage,to,do,realize,ones,profes
3、sional,basketball,more,than,名师点津,【1】Potato chips were invented by mistake. 薯片是无意中被发明的。 【知识点】 by mistake的用法。 【讲解】 句中的mistake是名词，意为“错误”。mistake也可以作动词, 意为“弄错；误解”，相关的短语有：mistake sb. for sb. 意为“把某人错认作某人”。,【举例】 I got on the wrong bus by mistake. 我无意中坐错了公共汽车。 He took away my pen by mistake. 他错拿了我的钢笔。 She m
4、ade a few mistakes in the math test. 她在数学测验中犯了几个错误。 They mistook him for the manager. 他们错把他当成经理了。 【熟记】 make a mistake/make mistakes 犯错误 by mistake 错误地；无意中 mistake A for B 误将A当作B,【学以致用】 根据汉语意思完成句子 1. 我错拿了他的书包。 I took his backpack _ _. 2. 他经常在拼写上出错。 He often _ _ in his spelling. 3. 她经常被误认为是她的双胞胎妹妹。 Sh
5、e _ often _ _ her twin sister.,by,mistake,makes,mistakes,is,mistaken,for,【2】George wanted to make the customer happy. 乔治想要取悦这位顾客。 【知识点】 使役动词、感官动词的相关知识。 【讲解】 句中make是使役动词，意为“使，让”，其后可接名词、形容词、省略to的动词不定式或动词的过去分词来充当宾语补足语。注意使役动词make, have及感官动词see, hear, watch等后接省略to的动词不定式作宾语补足语的主动语态变成被动语态时，动词不定式的“to”需还原。,【
6、举例】 They made Mr. Brown a Roman citizen. 他们使布朗先生成了罗马公民。 What he said made me sad. 他说的话让我很难过。 The boss made the workers work twelve hours a day.=The workers were made to work twelve hours a day. 老板让工人们每天工作十二个小时。,【学以致用】 ( )1. She made her daughter _ the piano two hours a day. A. plays B. to play C. pl
7、ay D. playing ( )2. The twins were made _ the room on Sunday. A. tidy B. to tidy C. tidying D. tidied ( )3. The joke was so funny that it made him _ again and again. (2015重庆) A. laugh B. to laugh C. laughed D. laughs,C,B,A,【3】Dr. Naismith divided the men in his class into two teams and taught them t
8、o play his new game. 奈史密斯博士把班里的男生分成了两队并教他们玩他的新游戏。 【知识点】 divide的用法。 【讲解】 句中的divide意为“分开；划分”，divide.into意为“把分成”， divide还有“分配；隔开；除尽”的意思。,【举例】 The road divides here. 这条路在这里分岔。 We divided the cake into four parts. 我们把蛋糕分成了四份。 He divided his energy between politics and business. 他把精力分配在政治和生意上。 Divide ten
9、by two, and you get five. 十除以二，得五。 【熟记】 与into有关的短语： divide sth. into. 将某物分开为 turn sth. /sb. into. 将某物/某人变为 cut sth. into. 将某物切成块 put sth. into. 将某物放进 translate. into. 将翻译成(常指两种语言的互译) fall into 掉进；陷入 break into 打断；闯入 come into 进入 go/get/enter into 进去；进入 look into 朝里面看 run into 陷入；撞上,【学以致用】 1. My fath
10、er divided the cake into four pieces. （改为被动句） The cake _ _ _ four pieces by my father. ( )2. The earth _ 24 time zones(时区). A. is divided B. was divided C. divides into D. is divided into,was,divided,into,D,【4】At the same time, they need to stop the competing team from getting the ball into their ow
11、n basket. 与此同时，他们还要阻止对手们将球投入他们自己的篮筐。 【知识点】 stop. (from) doing sth.。 【讲解】 stop. (from) doing sth.意为“阻止 做某事”，其同义词组有：prevent . (from) doing sth. 和keep. from doing sth. (from不能省略)。,【举例】 She stopped the children playing near the river. 她阻止孩子们在河边玩耍。 The bad weather prevented us getting there on time. 恶劣的天
12、气阻止了我们准时到那里。 I dont want to keep you from your work. 我不想耽误你的工作。 【熟记】 与stop有关的短语： stop doing. 停止做 (手头的事) stop to do. 停止 (手头的事)去做另一件事 stop/keep/prevent. (from) doing.=. be stopped/ kept/prevented (from) doing. 阻止/妨碍做,【学以致用】 1. 根据汉语意思完成句子。 (1)谁也阻止不了我们去野营。 No one can _ us from _ _. (2)警察正努力阻止小偷逃跑。 The p
13、olice are _ _ _ the thief _ _ _. ( )2. You look tired. Youd better _ a good rest. (2014烟台) A. stop to have B. stop having C. to stop to have D. to stop having,stop/keep/prevent,going,camping,trying,to,stop/keep/prevent,from,running,away,A,【5】Basketball has not only become a popular sport to play, bu
14、t it has also become a popular sport to watch. 篮球不仅成了受欢迎的玩耍运动，而且成了受欢迎的观赏的运动。 【知识点】 not only. but (also).的用法。 【讲解】 not only. but (also).，该短语意为“不但， 而且”， 其中also有时与but分隔开，也可以省略， 还可换成not only. but. as well。, 注意: （1） 该短语其连接的两个对等成分侧重点在“but also”上，谓语动词的数应与but also后的主语保持一致； （2） not only放在句首，其后面接句子时要用倒装结构。 not only.but also. （不但而且）, neither. nor. （既不也不）, either.or. （要么要么） 这三个短语连接对等成分作主语时, 要遵循“就近”原则；而用both.and. （两者都） 作主语时, 谓语动词通常用复数。,【举例】 Eleanor not only dances well， but (
