高考英语一轮复习 BookI Unit22教学案 人教大纲版

2011高考英语一轮教学案大纲版Unit 22理解:要点诠释单词1.prevent讲: v. 妨碍；阻碍；防止；预防例：We should do our best to prevent accidents.我们应该尽力防止事故发生。

However,some psychologists warn that too much study can prevent a child from developing normally.然而心理学家警告说学生负担太重会阻止孩子正常发育。

Her sudden arrival prevented him(from)going out.她突然来到使他不能外出。

链接·提示prevent sb. (from)doing=stop sb. (from)doing=keep sb. from doing 阻止某人做某事在主动语态中，使用stop或prevent时，可省略from，用keep时不可省略from，因为keep...doing的意思为“某人一直做”；在被动语态中都不可省略from。

练：—What _______ you to come to the party?—An unexpected accident _______ me going.A.prevented;forbadB.protected;forbadC.forbad;preventedD.stopped;kept提示:该题考查动词搭配及意义的辨析。

forbid sb. to do禁止某人做某事；prevent sb. (from)doing防止、妨碍某人做某事；stop sb. (from)doing让某人停止做某事；keep sb. from doing不让某人做某事；protect sb. from+n.保护某人躲开某物。

答案:C2.divide讲: v. 分；划分；分开；隔开例：How should we divide our work?我们怎样分工？The Red Sea divides Africa from Asia.红海把非洲和亚洲分开。

Let’s divide ourselves into several groups.咱们分成几个小组。

链接·提示(1)divide...into...把……分成……(2)divide sth.between/among sb.(在……之间)分配；分享；分担(3)divide by用……除(尽)；因……分裂(4)divide and rule分而治之练：(1)He _______ his time between reading and writing.A.dividesB.joinsC.separatesD.devotes提示:从句意和结构看，应该使用divide，divide sth.between A and B把(时间、精力等)分别用于……。

答案:A(2)He divided the tools _______ the children,who were _______ three groups.A.between;separated fromB.among;divided intoC.in;divided intoD.among;separated from提示:divide among/between在……之间分；divide...into...把……分成……。

答案:B3.risk讲: v.冒风险(或危险)n. 危险；风险；危险人物例：He risked his life to save her.他冒着生命危险去救她。

If you put money into gambling or horseraces,you risk losing it.如果你把钱投到赌博或赛马里，你就有输掉的危险。

When you buy land,you take the risk that it will lose value.你买地时，就承担了土地贬值的风险。

Smoking can increase the risk of developing heart disease.吸烟会增加得心脏病的危险。

链接·提示(1)at risk(from/of sth.)有危险；冒风险(2)at the risk of doing sth.冒着……风险(3)at risk to yourself/sb./sth.冒伤及……的危险(4)run/take the risk of doing sth.冒……的危险；冒险做某事练：The young man was brave enough to risk________ into______ prison by the enemy.A.putting;theB.to put;/C.putting;aD.being put;/ 提示:risk后只能接动名词作宾语，不可接动词不定式作宾语，排除B项；主语the young man 与put之间有逻辑上的动宾关系，故选D。

本题也可以从动词短语put sb.into prison入手。

答案:D短语1.take turns讲:该短语的义项为“轮流”。

例：Mary and Helen took turns at sitting up with their sick mother.玛丽和海伦轮流熬夜陪伴他们生病的母亲。

We took turns at driving the car.我们轮流开车。

链接·拓展(1)by turns 轮流=take turns at doing sth.She went hot and cold by turns.她一会冷一会热。

(2)It’s one’s turn to do sth.轮到某人做某事It’s my turn to drive next.下回该轮到我开车了。

(3)in turn(s)轮流；依次；按顺序They sang on the stage in turn.他们轮流在舞台上唱歌。

(4)on the turn在转变Their opinions are on the turn.他们的看法开始转变。

(5)out of turn不按顺序；次序混乱Please don’t speak out of turn.请按顺序讲话。

(6)serve one’s turn适合自己的需要I think this book will serve my turn.我认为这本书会适合我的需要。

练：You’ve missed your ______ to speak and you have to wait for another turn.A.turnB.chanceC.orderD.opportunity提示:从后面一句话所提供的another turn“另一轮次”分析，此处应该使用turn。

答案:A2.cut off讲：该短语的义项有“砍下来；切断；阻碍；阻挡；堵塞”。

例：The new factory cut off our view of the hills.新建的工厂挡住了我们观山景的视线。

The army was cut off from its base.那支部队与基地失去了联系。

练：He was in hospital for six months.He felt as if he was ______ from the outside world.A.cut outB.cut offC.cut upD.cut through提示:本题考查根据语境选用cut短语的能力。

解题时应首先弄清各短语的含义，然后根据语境作出选择。

cut out剪下，删去；cut off砍下来，切断，断绝；cut up切碎，摧毁；cut through 抄近路，裁剪。

根据语境选B项。

全句意思为“他住了六个月的医院，他感到好像与外界隔绝了”。

答案:B句型“问路及应答”的交际用语讲：注意观察下面教材原句:—Excuse me,can you tell me where the roller coaster is?—Go straight down this road,and then turn left.链接·提示问路:(1)Excuse me.Can you tell me the way to...?Excuse me.Which road goes to/leads to...?Excuse me.Does this road lead to...,please?Excuse me.Where can I find...,please?Excuse me.Am I going in the right direction?应答:(2)Go down this street/road and turn right/left at...Go straight ahead and...It’s south/north of the...It’s in that direction.It’s just across the street.It’s about...minutes’/hours’ walk.练：—Excuse me,can you tell me how to get to the airport?—______.A.Certainly,you can take a No.3 busB.No,I don’t know howC.Yes,you could go by busD.Along this road提示:先回答能不能帮忙，再告诉对方怎么走。

C、D项不是地道的交际英语。

答案:A辨析1.feel like,would like(1)feel like中的like是介词，后接名词或动名词。

该结构用来提出意愿或希望，意思是“想要(做某事);愿意”。

(2)would like中的like是动词，后接名词、不定式或不定式的复合结构。

即时练习:(1)I ______ not ______ to go for a walk with you.I ________ staying at home reading this novel.(2)I ______ you to help my brother with his English.(3)Do you ______ having something to eat?(4)—______you ______ to join us in the travel?—Yes,I ______ to.答案:(1)would,like;feel like (2)would like (3)feel like (4)Would;like;would like2.divide,separatedivide vi.&vt.分开；分成……份常构成短语:divide...into...把……分成几份；divide up分开。