1、教学目标(1)熟记学案中所列出的单词和短语。(2)通过学案中所给出的重点单词和重点短语的学习，让学生能够正确理解和使用这些单词和短语，能够运用这些词语造句。,教师用书独具演示,(3)听懂课文中所给出的听力材料。(4)通过对语法的教学让学生能够理解并能够正确运用形容词和副词的比较级。,教学地位本节课听力内容为实验中师生的对话，配有填写相关实验描述的活动。该部分引入了表示实验仪器的词汇，并介绍了带分数的读法，均配有相关的练习活动。语法1主要学习形容词的比较级，主要是引入倍数的表示法。语法2继续介绍形容词和副词的比较级。主要介绍了比较级的三种用法：(1)表示“越来越”，(2)表示“越，越”，(3)表
2、示程度的副词(much，a little.)形容词或副词的比较级。,新课导入建议通过对学生作业的检查导入本堂新课。,演示结束,keep/lose ones balance保持/失去平衡break the balance破坏平衡make up the balance补足差额on balance总的来说keep the balance of nature保持生态平衡balance A against B 权衡/比较A与Bbalanced adj.保存平衡的a balanced diet均衡饮食,He kept his balance with his arms on the wall.他将双臂抵在
3、墙上以保持平衡。You have to balance the advantage of living in a big city against the disadvantages.你必须权衡住在大城市的利与弊。I lose my balance and fell on my face.我失去了平衡，脸着地摔倒了。,【对接高考】(2012天津高考)You were working too hard. Youd better keep a between work and relaxation.ApromiseBleadCbalanceDdiary【解析】考查名词辨析。句意：你工作太劳累了。你
4、最好使工作与休闲保持均衡。 keep a balance“保持平衡”；keep a promise“遵守诺言”；keep a diary“记日记”。【答案】C,完成句子小女孩失去了平衡，从平衡木上摔了下来。The girl and fell off the balance beam.人行道上结了冰，要想保持平衡不容易。Its difficult to on an icy pavement.【答案】lost her balancekeep your balance,2go ahead开始吧Go ahead! means Begin！(教材P48)“Go ahead！”意思是“Begin！”May
5、 I start？我可以开始了吗？Yes，go ahead.好，开始吧。,表示同意或允许表示同意对方的请求，根据情况可译为“说吧，做吧，开始吧，进行吧。”表示继续或持续表示请对方继续说、继续做等，通常可译为“继续吧”。表示请对方先走或先做某事，译为“你先走一步，你先请”。,Will you do me a favour？请你帮个忙好吗？Go ahead.说吧。Go ahead, were all listening!继续讲吧，我们都在听着呢！Go ahead, what are you waiting for?往前走呀，你在等什么？You go ahead and Ill join you s
6、oon.你们先开始，我一会儿就来(和你们一块儿干)。,【对接高考】(2011辽宁高考)I probably shouldnt have any more cake.Oh， . It wont kill you.Ago aheadBhold on，pleaseCyoure welcomeDthatll do,【解析】考查情景交际。根据答句中的it wont kill you“撑不死你”可知go ahead“继续吧”符合语境。B项hold on，please“请不要挂断，请等一下”；C项youre welcome“不客气”；D项thatll do“那样就行了”，均不合语境。【答案】A,翻译句子我可
7、以借你的字典吗？可以，拿去吧。 . .我要先走一步，告诉他们你在路上。 .【答案】Can I borrow your dictionary？Yes，go ahead.Ill go ahead and tell them youre on the way.,3Its your turn means Youre next.(教材P48)“Its your turn”意思是轮到你了。Its ones turn to do sth.为固定句式，表示“轮到某人干某事了”。Its your turn to recite. 轮到你背诵了。,We did the work by turns.我们是轮流做这项工
8、作的。The children got on the bus in turn.孩子们依次上了公共汽车。Lets take turns at doing it.让我们轮流来做吧。,句型转换We take turns to clean the classroom.We clean the classroom .We clean the classroom .【答案】by turns；in turn,单项填空Who is going to read the text? I didnt catch what our teacher had said. . You should listen caref
9、ully.AGo aheadBIts your turn nowCYouve got itDNot at all【解析】句意：下一个该谁读了？我没有听见老师说什么。该你了，你应该注意听。its ones turn“轮到某人(做)”；go ahead“开始吧”；have got it“明白了；懂了”；not at all“根本不”。【答案】B,自我总结1在表达倍数句型中， 一定要放在比较级的前面；2“比较级and比较级”表示“ ”；3“the比较级，the比较级”表示“ ”。【答案】1.表示倍数的词2.越来越3.越就，越,3.times the性质名词(size，height，depth，len
10、gth，width) of.The new building is eight times the height of the old one.这座新楼是那座旧楼的八倍高。4.times as much/many名词as.He has got three times as many books as his sister.他拥有的书的数量是他妹妹的三倍。,二、形容词或副词比较级的基本用法1同级比较：“.as形容词/副词原级as.”表示“和一样”，否定式为“.not as/so原级as.”This picture is as beautiful as that one.这幅画和那幅一样漂亮。I
11、have not seen a person as/so clever as he is.我还没有见过一个像他这么聪明的人。,2比较级：“形容词/副词比较级than.”表示“比更”Yao Ming is taller than Michael Jordan姚明比迈克尔乔丹高。Dogs run faster than rabbits.狗比兔子跑得快。,三、形容词或副词比较级的特殊用法1the比较级，the比较级表示“越，越”The more we get together, the happier we will be.我们相聚越多就越快乐。2“比较级and比较级”表示“越来越”It becom
12、es colder and colder when winter comes.冬天来了，天气变得越来越冷。,3“否定词比较级”表示最高级含义He has never spent a more worrying day.他度过了最忧虑的一天。4“the形容词/副词比较级of.”表示“两者之中比较的一个”。This is the bigger of the two rooms.这个房间是两个中比较大的一个。,四、修饰比较级的副词1在形容词比较级前可以用a bit，a little，rather，much，any，far，by far，a lot，a great deal，still，even(更加
13、)等副词来修饰。2还可以用表示倍数的词或度量名词作修饰语。He did much better than I in maths.他数学学得比我好多了。,He is taller by far than his brother.He is by far the taller of the two brothers.他比他兄弟高多了。(注意by far的不同位置)Are you feeling any better today?你今天感觉好些了吗？,.单项填空1The wheels of the old wagon are nearly those of a modern car.Atwice t
14、he sizeBtwice size ofCtwice sizes ofDtwice the size of,【解析】考查倍数表达法。句意：古代的车轮的尺寸几乎是现代车轮的两倍。谓语后先接倍数再接adj./adv.(比较级)than或as adj./adv.(原级)as或the size/length/width/height/depth。所以选D项。【答案】D,2 you consider， you will feel.AThe many；the worriedBMuch；much worriedCThe more；the more worriedDMany；more worried【解析】
15、句意：你考虑的越多，你就会越担心。此处考查的是“the比较级，the比较级”“越，越”这一句式结构。【答案】C,3With time going by, he became in the summer training.Amore and relaxedBmore and more relaxedCmore and relaxingDmore and more relaxing【解析】句意：随着时间的推移，他在这次夏季培训中越来越轻松。A项和C项这两种表达方式在英语中不存在，故排除；relaxing“令人感到轻松的”，通常用于修饰物；而此处表示人感到轻松，故选B项。【答案】B,4Do you
16、think we need to take more clothes?Perhaps. The radio says it will be tomorrow.Aeven coldBa little warmCa bit colderDa bit warm【解析】句意：你认为我们需要多穿点衣服吗？或许吧，收音机上说明天有点冷。B项和D项意思相同，可同时排除；even不能修饰形容词原级，故排除A项。a bit 修饰形容词比较级，也可以说a little colder。【答案】C,5Did you enjoy yourself at the party?Yes, Ive never been to
17、one before.Aa more excitedBthe most excitedCa more excitingDthe most exciting【解析】句意：我以前从没有参加过比这更好的派对(这是我参加的最好的派对)。“否定词比较级”表达最高级意义。【答案】C,. 用所给形容词/副词的适当形式填空1Your idea is no good, but hers is even (bad)2He has written some short stories, but he is (well) known for his plays.3Can you move a little (far)
18、?4. Which is the (large) country, Canada or Australia?5We have never spent a (exciting) day.6The more you explained， (easy) I found it to understand.,7We must unite to win still (great) victories.8He didnt give me so (much) money as he promised.9I think Linda is as (beautiful) as Lucy, but somebody thinks Linda is (beautiful) than Lucy.10The novel is much (long) than that one, but it isnt so (interesting) as that one.【答案】1.worse2.better3.farther4.larger 5more exciting6.the easier7.greater8.much 9beautiful；more beautiful10.longer；interesting,
