英语：Unit5Meetingyourancestors学案(新人教版选修8)

1、Unit 5Meeting your ancestors7核心单词1. alternativen.可供选择的事物；(两者或以上)可能的选择adj.供选择的，二选一的常用结构：h ave no alternative but to do sth.只能做某事；除？-?-外别无选择We have no alternative but to go on.除了继续下去，我们别无选择。There was no other alternative but to fight till the victory.除了战斗到胜利，别无选择。联想拓展：alternatively adv. 或者，二者择一地altern

2、ate vt.使交替；vi.交替；adj.交替的；轮流的高手过招：(1)单项填空In this school, the students have three courses, and seven courses.A. required; alternative B. requiring; alternativeC. required; alternate D. requiring; alternate解析：选A。require(尤指根据法规)规定、需要，此处用过去分词required修饰courses ,因为两者之间为被动关系。后空意思为?0选择，选其一？土， alternative符合句意

3、。(2)单句改错 I had no alternative but report him to the police. You have the alternative to speaking or keeping quiet. Tom and Harry do the work on alternative days.答案：report前加to to-of(3) alternative f alternate2. arrestvt.逮捕，拘留，吸引(注意)n.C逮捕常用结构：be arrested for sth.因某事而被捕arrest one s attention 吸弓I某人的注意un

4、der arrest 被捕；被拘留The criminal was arrested yesterday.那名罪犯昨天被捕了。What she did arrested my attention.她所做的吸引了我的注意力。高手过招用适当的介词或arrest的适当形式填空 I got arrested careless driving. Her uncle was arrest,but nobody knew the rea son. Five youths in connection with the attack.The public applauded the of the crimina

5、l suspect.答案： for under were arrested arrest3. preservev.保护，维持，保存常用结构：preserve sth. from使？-?-免遭？-?-You can preserve meat or fish in salt.你可以用盐保存肉或鱼。It is one of the duties of the police to preserve public order.警察的职责之一是维持公共秩序。联想拓展：preservable adj .可保存的preservation n. 保存 preserver n. 保护者，保存者 易混辨析：pre

6、serve/conserve/reserve/protectpreserve v.保护，维持r,保存；conserve v.保存，保护，强调珍惜；reserve v.指意见、看法的保留或座位的预定；protect v.保护，强调使其免受破坏或损害。高手过招(1)单项填空In spite of failing to save every endangered species, we may preserve the majority extinction.A. Against B. withC. beyond D. from It is the duty of the police to soc

7、ial order.A. Save B.reserve C.preserve D. rescue解析：选D。preserve sth. from使？-?-免遭？-?-,符合句意。解析：选Co A D两项都意为？。拯救？土；B项意为？。保留，保存？土；C项意为？。保护,维持？士。根据句意可知，选 C(2)完成句子夏天收获的大量水果可冷藏或装瓶加以保存。In the summer, large crops of fruit may by freezing or bottling.我认为这些有趣的旧习俗应该保存下去。I think these interesting old customs .答案：

8、 be preserved should be preserved4. reliefn.减轻，解除常用结构：bring /seek/find/giv e/feel relief带来/寻求/找到/予以/感到解脱much to one s relief=to one s great relief使某人宽慰的是?-?-relief road备用车道relief map 地形图I felt great relief when I heard I had passed the examination.当听到已经通过考试时，我感到轻松了许多。联想拓展：relieve one s feelings 发泄感情

9、relieve sb. of使某人解除The minister was relieved of his post.部长被解除了职务。高手过招：单项填空Hearing the news that her son was found, she breathed a sigh of . A.excitement B. joy C. relief D. belief解析：选a按照句意此处为？。减轻忧虑，松了一口气？,C项符合句意。5. assumevt.设想，假定；主观认为；装出？-?-的样子 常用结构：assume sb./sth. to be假定/认为某人/事是？-?-We assumed tha

10、t you understood the situation.我们认为你了解形势。He assumed a well informed manner but in fact he knows very little.他装出副见多识广的样子，而实际上他知之甚少。联想拓展：assumed adj.假装的，假的；假定的，设想的an assumed result 彳所定的结果assuming adj.自负的，傲慢的，过分自信的；conj.假如（后跟从句）assumption n. 假定，设想His look of astonishment was assumed.他那惊讶的样子是装出来的。He is

11、too assuming in this attitude about the energy supply.他在对待能源问题的态度上显得过于自信。Assuming that the weather is favourable, farmers will have a bumper harvest.假如风调雨顺，今年农民将获丰收。高手过招完成句子假如今天下午下雨我们该怎么办呢？ this afternoon, what shall we do?在证实他有罪之前我们必须要假定他是清白的。We innocent until he is proved guilty.答案：CD Assuming it

12、rains must assume him to be6. somehowadv.不知怎么地；以?-?-方式常用结构：somehow or other不知是什么原因；由于某种原因；以某种方式Somehow or other we became friends, I never knew just why it was.了朋友，我绝不知道为什么会这样。易混辨析：不知何故我们成anyhow/somehow/somewhatanyhow 意为？ 无论如何？土， 相当于 anyway; at any rate ;somehow意为？以某种方式(in some way or other)?或？。由于某种

13、原因somewhat意为？从某种意义上讲；有几分？土,相当于 in a way, rather I always know I d get the job, somehow.也不知为什么，我总觉得能得到那份工作。Somehow we must get to Glasgow.我们得设法到格拉斯哥去。He could have finished it on schedule, but somehow he fell behind.他原本能按预定进度做完这件事的，但不知怎么却落后了。I am somewhat tired of this book.我对这本书有点厌烦。高手过招选词填空(somehow

14、/anyhow/somewhat )We must get the work finishedor other by tomorrow morning.It may rain,r but I shall go out, I don t mind the rain.The price washigher than I？用 expected.答案： somehow) anyhow somewhat重点短语7. regardless ofadj.不管，不顾People should be hired regardless of race and sex.雇用人员应没有种族、性别的差异。He cont

15、inued speaking, regardless of my feelings on the matter.他不顾及我在止匕事上的感受而继续往下说。联想拓展：regardless adv.无论如何；不管；不顾disregarding /in spite of /despite三者意义和用法相同，区别不大。regardlessnessn.不注意温馨提示：in spite of the fact that句式表示？虽然；即使，不管事实上如何,？。although/th ough conj.尽管，虽然；其后接句子。高手过招：单项填空_thedifficulties in talking, the

16、y can understand each other by body language.A. Regardless of B. Although C. Though D. In spiteSome people act regardl ess what will happen afterwards.A.with B. as C. of D. for解析：选 A。although 与 though 是连词，后需跟句子，而 the diffi -culties in talking 是名词短语，故排除。加表达有误。故选 A解析：选C。regardless of 不顾，不管。符合句意。8. fed

17、 up with受够了；厌烦；饱受I ? m fed up with waiting for her.我等她都等得不耐烦了。What? s the matter? You look pretty fed up.怎么啦？你显得那么不耐烦。联想拓展：feed sb./sth. on sth. 给（人或动物）食物；喂；饲养feed on （动物）以?-?-为主食feed sth. to sb./sth. 给（人或动物）某物作为食物高手过招：用适当的介词填空 Several children were feeding bread the ducks. What do you feed your dog

18、? Cows feedgrass.Im fed up the same breakfast every morning.答案：toon on with9. cut up切碎；使伤心，严厉批评Peter, why don t you cut up ve getables?彼得，为何不把蔬菜切碎了呢？联想拓展：cut off 切断；剪掉cut down砍伐；削减cut in 打断cut out 剪去，删 法；略去cut into pieces 切成碎片Don t cut in while Im talking!我说话时别插嘴！高手过招单项填空Half the fores t was to make

19、 room for the new road.A.cut off B. cut downC. cut up D. cut away（木头等）分解解析：选Bo考查短语辨析。cut off 切除；cut down 砍倒；cut up 开。10. look ahead向前看；为将来打算联想拓展：look back向后看；回顾look out 留神；注意look into 调查lookup查找；形势好转；看望look up to sb.钦佩/尊敬某人look through仔细查阅盼望着look forward to sth./doing sth.look on 旁观；看作look over 快速浏览

20、；复习look down （on/upon sth.） 向下看；轻视Look out! There is danger ahead! 当心！前面危险！I m looking forward to seeing you this summer vacation.我盼望今年暑假能见到你。高手过招：完成句子You should（翻阅字典查查这个生词 ）.I am（ 盼望）hearing from you as soon as possible. （ 当心）or you will catch cold.I have to（ 复习笔记 ）for the exam.答案： look up the word

21、 in a dictionary looking forward to Look out look over my notes重点句型11. If only it could be just like last year!要是能像去年那样该有多好啊！if only 但愿；要是？-?-就好了。其后一般用虚拟语气。If only I were a doctor.这句话用的是一般过去时，意思是：我现在要是个医生就好了。与现在相对应的句子用一般过去时。If only I had said nothing.而这句用的是过去完成时，意思是：我当时什么都不说就好了。是与过去时态相对应的，故用过去完成时。If

22、 only my son didn t spend so much time before TV.这句可以理解为一般现在时的虚拟语气，所以句子中使用了一般过去时态。原意为：要是我儿子不在电视前面待那么长时间就好了。温馨提示：only if表示？。只有，只要？土，后接让步状语从句，主句采用倒装句式。I wake up only if the alarm clock rings.只有闹钟响了，我才会醒。Only if a teacher has given permission is a student allowed to enter this room.只有得到老师的允许，学生才能进入这个房间。高手过招：单项填空Look at the