高二英语教案：units17-18学案

1、高中二年级英语学案units 17-18 (b2)【知识网络 】一、重点 与短 1由 come 构成的常用短 ：come about 出 ； 生come across 偶然遇到或找到come along 展come around/round恢复； 原come at 达到；得到come back 反 ；回来；恢复come by ；取得come down 失去 富或地位；下来；倒塌come in 到达； 来come off 离开； 行； come upon 偶然 或遇到come through ； 出come up 走近； 生come over 来；抓住come to 达到； 承come out

2、行或 表； 束； 果；出来come on 快点；赶快2与 think 相关的短 :come to think of it 想一下think a lot of 喜 ;尊敬think aloud 自言自 think and think 想think away 想开了 ;想得忘了think back to 回 起think twice 再三考 , 踌躇think for 认为 ; 料think over 仔 考 think to oneself 算 , 自思自忖first think, then speak. ( 谚 )先思而后言think about/ of 思考 , 考 ; 回 , 想起 ; 想

3、到 (某人 , 某事 )think better of 改 看法 ; ( 某人 )有 高的 价think highly (much/ no end/ well) of 价及高 ; 重 , 尊重 ; 器重 , 抗得起think little/ nothing of轻视 , 不在乎 ; 对 毫不考 . 毫不踌躇think one is it 自以 了不起, 自高自大think (sth.) out/ through仔 考 ; 想出 ; 出第 1页共 8页thank today and speak tomorrow. ( 谚 )熟思而后言think up 想出 , 想起 ; 捏造 , 虚构 ; 设计

4、出 , 发明3由 look 构成的常用断语look at 看; 注视look for 找 ,寻找look to 注意 ; 指望look into 调查look after 照料look down on 轻视 , 看不起look forward to盼望 ;期待look in 顺便看望 ; 短暂访问look out 注意look over 翻阅 , 浏览look up 好转 ; 仰望 ; 拜访look down upon 轻视 ; 轻蔑look up to 仰望 ; 尊敬look back (与 on, to 连用 )回想 , 记忆look on( 常与 as 连用 )旁观 ; 看作二、词义辨析

5、1 too much 与 much too 大不相同too much: 中心词在 much, 意为 “太多 ,过分 ”, 在句中作定语 ,修辞不可数名词 ,也可用作状语 , 修辞动词 , 还可用作主语、表语等 .例如 :sorry that i ve put you too much trouble.很抱歉给你添了太多麻烦.he drank too much at the dinner party.餐会上他喝的太多了.it really is too much of your father to bring guests home to dinner without letting me kn

6、ow in advance.你父亲实在太过分了,事先不告诉我一声就带客人到家里来吃饭.too much has been talked about the topic.关于这个话题已经谈过太多了.much too:中心词在too, 意思是“极其 ,非常 ”, 修辞形容词或副词,表示程度 .例如 :the problem is much too difficult for me.这道题对我来说太难了.his condition is much too bad, and needs a further examination.他的身体状况非常糟糕, 需要作进一步检查.2辨析： though, al

7、though, even though, as though第 2页共 8页although 和 though ：“ 然，尽管”的意思。都可用作 引 步状 从句，两者可互 。例如：they are generous although/ though they are poor.他 尽管 ，却十分慷慨。though引 步状 从句 和as 一 ，表 可以提前；此外，though 可以用作副 。例如：hardworking though/as he was, there was never enough money to pay the bills.他 然工作很辛苦，但却一直是入不敷出。it s a

8、 hard work; i enjoy it, though. 是件苦差，不 我倒很 意干。（ though 用作副 ） 。even though ：和 even if 同 ， “尽管，即使 , 然”，用作 引 步状 从句， 气比 though, although 更 。例如：she won t leave the television set, even though/even if her husband is waiting for hissupper.即使她丈夫等着她吃晚 ，她也不愿意离开 机。as though ：和 as if 同 ，“好像，仿佛” ，用作 ，引 表 从句和方式状

9、从句。例如：he sounds as though/ as if he s got s sore throat.他的声音听起来好像是喉 痛。he opened his lips as though/ as if he would say something.他 开嘴，好像要 什么。三、重点句型1 now that we are developing new technology at such a high pace, the true challenge is tofind new ways of using it. 既然我 正高速地 展新技 , 真正的挑 在于 找新的使用途径 .now t

10、hat 是固定短 , 意 “既然 ; 由于 ”, 引出原因状 从句, that 可省略 .如 :now (that) he is well again, he can go on with his english study.2 maybe it is time for the rest of society to accept me as i am and get used to the fact thatwhile i may not be able to walk, there are many other great things i can do. 或 到了社会上的其他人承 我的 候

11、了 , 到了他 接受 一事 的 候 : 然我不会走路 , 但仍有很多事情我可以做 .acceptas“承 是 , 同意 是 , 可 是 ”. 如we have to accept things as they are.while 此 意 “ 然 ; 尽管 ”. 如 :第 3页共 8页while he has many friends, peter is often lonely.3 if we look only for the correctanswer and rejectideas that dontprovide a completeanswer, we may get stuck,

12、如果我们只找正确答案 , 拒绝那些不能给我们完整答案的想法 , 我们就可能被困住 .get stuck 是被动语态 , 意为“被困住 ; 被卡住 ”. 如i got stuck in a heavy traffic jam.四、语法复习复习定语从句1关系代词as 引导的定语从句.as 可以引导限制性定语从句, 也可以引导非限制性定语从句, as 在从句中可做主语, 宾语, 表语 .如 :the people as you describe are thought to be fools.as is known to all, edison invented the telephone.as 引

13、导非限制性定语从句时和which 的区别 :（ 1） as 引导的非限制性定语从句可以放在句首,句中 ,句末 ; which 引导的非限制性定语从句只能放在主句的后面.（ 2）as 经常和 be, 和被动语态连用; which 引导的非限制性定语从句中经常用主动语态.（ 3）as 多用于这些习惯用语中 :as anybody can see; as is well-known; as we had expected; as often happens; as it is; as has been said before; as is mentioned above; as is often t

14、he case. / which2代词 /数词 / 名词 +of whom 引导的非限制性定语从句.如 :i have many friends, some of whom are businessmen.或 :i have many friends, of whom some are businessmen.recently i bought an ancient chinese vase, the price of which was very reasonable.或 :recently i bought an ancient chinese vase, whose price was

15、very reasonable.the chinese team won 16 gold medals in barcelona olympic games, 12 of which were won by women.或 :the chinese team won 16 gold medals in barcelona olympic games, of which 12 were won by women.3 time 当先行词 : 若作为 “时间 ”讲 , 关系代词用 that 或省略 ; 作为 ”一段时期 ”讲 , 用 when 引导定语从句 . 如:there was a time

16、when i hated to go to school.it s time that we went to school.4定语从句中谓语动词与先行词保持一致.如 :he is the only one of the students who is often praised by the teacher.he is one of the students who are often praised by the teacher.5对于一些既可以作主语 , 宾语 , 表语 , 又可以作状语的先行词 , 我们在选择关系代词或关系副词时 , 可以使用 “代入法 ”, 把先行词代入到定语从句中 ,

17、 看它所作的成分 , 如果能第 4页共 8页作的是主语 , 宾语 , 表语 , 那么我们就用关系代词, 如果它作的是状语, 那么我们用关系副词 .this is the reason why he had a few days off.this is the reason that 或 which 或不填he told me.illnever forget the days that或 which 或不填we spent together.illnever forget the days when we worked together.this is the place that 或 whic

18、h 或不填we visitedlast year.this is the place we where worked last year.6注意 way 后接定语从句的情况当先行词是 , way 意为“方式 ”“方法 ”时 , 引导定语从句的关系代词有三种情况: that; inwhich 和省略 .如 :the man was puzzled by the familiar way that/in which/省略the waiter and i chatted witheach other.【考点透视考例精析 】考点 现在完成进行时态表示动作从过去某一时间开始一直延续到现在, 且有可能继续

19、下去。考例 1now that she is out of job, lucy _ going back to school, but she hasntdecided yet.a had consideredb has been consideredcconsideredd is going to consider点拨 选 b。根据所提供的情景but she hasn tdecided yet ，说明 lucy 还在考虑这件事，也就是说consider 这个动作过去已经开始一直持续到现在，且仍然在继续进行。这里要用现在完成进行时态。考点 “ must have +-ed ” 表示对过去发生的

20、动作或状态作出的肯定判断或推测，翻译成“（过去）一定 ”。考例 2the woman biologist stayed in africa studying wild animals for 13 yearsbefore she returned. oh, dear! she _ a lot of difficulties!a may go throughb might go throughcought to have gone throughd must have gone through点拨 选 d。根据上文 stayed in africa studying wild animals f

21、or 13 years ，说明下面一句是对过去发生动作的肯定的推测。意思是： “她一定经受了不少困难。 ”考例 3 tom is never late for work. why is he absent today? something _ to him.a must happenb should have happenedc could have happenedd must have happened第 5页共 8页点拨 选 d。“ tom 从来不迟到，但现在每来”。所以这里要用must have done 对过去的情况作出肯定的推测。should have done 表示 “过去本应该

22、做 （而事实上没做） ”；couldhave done 表示“过去本能/ 可以做（而没做）”，含有责备的语气。考例 4 this cake is very sweet. you _ a lot of sugar in it.a should putb could have putc might putd must have put点拨 选 d。句义是：“饼很甜， 肯定放多了糖” 。表示对过去动作的肯定推测或判断。考点 cut 构成的固定短语。 cut up 切碎； cut down 砍倒； cut out 切断； cut in 插嘴，打断。【基础演练 】一、根据所给首字母或括号中的汉语意思填写

23、句子空格中所缺的单词。1he is wearing a sad _ (面部 ) expression.2the boy is very _ (好奇 ) about everything and always asking strange questions.3the prisoner _ ( 企图 ) an escape but failed.4you should go now, o_ youll miss the bus.5he _ (拒绝 ) my offer of help.6his father has a s_ of humour.7what does the word m_ in

24、 the context?8we should not judge a peoson just by his a_. i think his quality is more important.9children are not p_ to swim here; its too dangerous.10 you must pay attention to your p_ a and intonation when you read the text.二、单项填空1it is quite obvious _we must apply other methods of setting the pr

25、oblem.a whetherbwhatchowd that2the boy is not very smart, so _often takes him quite a while to do what he is told to.a therebthatctheyd it3today there are moreopportunities fordisabled people tomake _contribution to_society.a a; theba; 不填c不填 ; thed the; a4he promised to send me an invitation to visi

26、t their country _until i was 60 years old.a each two yearsb each other yearcevery other yeard every second years5we cantfinish the work in such a short time; you must _our lack of experience.a allow toballow forc. allow ofd allow into6i felt very disappointed when my repeated request that i join the

27、 club was _.a replacedbresistedcrejectedd removed7he is quite _of the risk, but he has no choice but to go ahead.a eagerbawarecsensitived serious8the man tried to break into the shop during the night, but got _in the chimney.a stuckbto be stuckcstickingd to stick9 the criminal _from the two policeme

28、n who were holding him and ran away.a broke offbbroke awayc broke upd broke down10 _that my head had cleared, my brain was also beginning to work much better.第 6页共 8页a forbdespitecsinced now【能力拓展 】in america, seldom do you go anywhere withouthearing a principle called win-win. itsounds strange to me

29、 at first because throughout my childhood, i have always been taught to tryeverything possible to win an upper-hand, rather than to help other people win. however, astime goes by, i have gradually comprehended the essence （真谛） of win-win principle it is theattitude of seeking mutual benefit.when i w

30、as little, i used to play chinese checkers （跳棋） which include two basic tactics （战术） : one is to create paths for yourself; the other is to block the passages of your rival. players may apply these two totally different approaches in the game, but the key for the player to win is to continuously cre

31、ate paths for him even if his opponent may take advantage of it. finally he can always reach the destination （目的地） a few steps ahead of the other player. meanwhile, some player may take another approach to prevent his opponent from moving forward at all costs. bythis he may get a short-termbenefit,

32、but couldn t fix attention on the final goal, thus he wouldnever truly develop further.in the 1990s, a strategy called win-win became widespread in the western world. its core isto achieve your objective while giving other people some benefits, so there is no real loser. oneexample of applying the w

33、in-win principle is the voluntarysystem in us. most americansadvocate（提倡）the spirit of social service and voluntary contribution. in us, schools and children organizations usually encourage and support kids to be engaged in community service so that thevoluntary spirit can be enrooted in their minds

34、 from childhood. moreover, a crucial（决定性的）standard for universities to judge new students is whether they have worked for the communityor not.in china, it is quite usual that some people are too selfish and never take other people sinterests into consideration, while someone who really has courage t

35、o do something for thepublic is often called“ foolish” or“ stupid” . actuallypeople helpingcanbe otherfgreat delightsfor the helper, for he can also learn something crucial for his life such as sympathy, care, devotion,etc. so only if you take other people s interests into earnest consideration can

36、you assure yourown gain.1 the purpose of the author in writing the passage is _.a to tell us the cultural differences between china and usa.b to tell us the different educational systems both in us and china.c to tell us the importance and meaning of win-win.d to show that win-win is popular in us and china.2 w