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1、Unit 3 精讲笔记A,知识点1 Sam plays them better than Tom. 萨姆比汤姆敲的好。 【讲解】 better意为更好地，较好地，在此处是副词well的比较级,修饰动词play。 Good better best Well-better-best 比较级往往用在两者之间的比较，最高级用在三者或三者以上比较She sings very well, but Jim sings better than her. 她歌唱的很好，但是吉姆比她唱的更好。【即学活用】No one can sing_ than her.A. good B. well C. better D.
2、best,知识点2 Sam has longer hair than Tom. 萨姆的头发比汤姆长。 【讲解】 （1）这是一个含有形容词的比较级的句子。比较级用于两者或者两类事物的比较，意为更，较。通常用从属连词than连接，表示比较。 She has more books than he does. 她的书比他的多。 （2）than是从属连词，意为比，用于形容词或副词的比较级之后，引出比较的对象，并且比较的对象前后要一致。 He is taller than me. 他比我高。 （3）比较级的结构：A+ be+形容词比较级+than +B；A +have/has +形容词比较级+名词+tha
3、n +B My bike is more expensive than that one. 我的自行车比那个贵。I have shorter legs than Pipi. 我的腿比皮皮的腿短。,【即学活用】1.The box was _than I thought. I was out of breath(气喘吁吁) when I got home.A. more heavier B. much heavier C. heavy D. very heavy 2.Jim is 40 kg. Tom is 38 kg. Tom is _ than Jim.A. taller B. thinner
4、 C. heavier D. fater 3.根据中文完成句子. (1) 我比我的弟弟大三岁. Im_ than my brother. (2) 这棵树要比那棵树高. This tree_ than that one.(3) 你比他矮. You are_ than him. (4) 他比你更强壮. He is _than you.,知识点3. 形容词比较级和最高级规则变化,【即学活用】（一）比较级与最高级形式： long_ _ wide _ _ heavy_ _ slow _ _ few_ _ happy_ _ unhappy_ fat _ _ far_ _ quickly _ _badly
5、_ _brightly_ _(二)用所给词的正确形式填空： 1. Of the two girls, I find Lucy the _ (clever). 2. Gold(黄金) is _ (little) useful than iron(铁). 3. My sister is two years _ (old ) than I. 4. Johns parents have four daughters, and she is the _ (young) child. 5. The _ (cheap) bags are not usually the best ones. 6. The s
6、hort one is by far _ expensive of the five. 7. The boy is not so _ (interesting) as his brother. 8. Dick sings _ (well), she sings _(well) than John, but Mary sings _(well) in her class. 9. She will be much _ (happy) in her mew house. 10. This dress is _ than that one. (expensive),知识点4 比较级的常用句型结构：1.
7、 A+ be+形容词比较级+ than +B ( A比B.)A+实义动词+副词比较级+ than +BTom is taller than Jim. I got up earlier than my mother.2. A +be+(倍数)+形容词比较级+ than +B ( A比B几倍)A+实义动词+(倍数)+形容词比较级+ than +B This room is three times bigger than that one.He runs three times faster than his brother.3. A+ be +the +形容词比较级+of the two+复数可数
8、名词 ( A是两者中比较的)Look at the two boys. My brother is the taller of the two.4. 比较级+and+比较级 / more and more+原级 ( 越来越)He is getting taller and taller. She is more and more beautiful.,5. the+比较级，the+比较级 （越, 越）The more you careful, the fewer mistakes you will make. 6.疑问词+be+形容词比较级，A or B ？Which is bigger, t
9、he earth or the moon? 7.疑问词+实义动词+副词比较级，A or B ？Who draws better， Jenny or Lucy？常接的修饰形容词比较级的前置词有：Much / a lot / far +形容词比较级 (得多)a lot better 好多了A bit / a little +形容词比较级 ( 稍微)a little earlier 早一点Even+形容词比较级 (甚至更) even more useful 甚至更有用,【活学即用】 1. Tony is not as clever as Lucy, but he works_ than her.A.
10、 hard B. harder C. hardest D. the hardest 2. This room is too small, we should find a _one.A. big B. smaller C. bigger D. biggest 3. the more you smile, the_ you will feel.A. happy B. happier C. happily D. more happy 4. who is _, you or he?A. clever B. cleverer C. cleverest D. more clever 5. Jack ru
11、ns as _as Sam.A. faster B. fast C. fastly D. more fast 6. 她越来越漂亮了 _,知识点5 Thats Tara, isnt it? 那是塔拉，是吗？ 【讲解】 本句式反意疑问句。反意疑问句是指陈述句后附加一个简短问句，征询肯定或否定的意见，或者希望陈述句所说的内容得到证实。反意疑问句的结构如下： (1)肯定的陈述句+否定的简短问句She is a good student, isnt she? 她是个好学生，是吧？-Yes，she is. 是的，她是。-No, she isnt. 不，她不是。 (2)否定的陈述句+肯定的简短问句Pipi
12、didnt go to school yesterday, did he?皮皮昨天没有去上学，是吧？-yes，he did. 不，他去了。-no，he didnt. 是的，他没去。回答反意疑问句，答语含义是依据。肯定事实用yes， 否定事实no来替。,【即学活用】 1.He didnt go to the park yesterday, did he?-_. He was ill yesterday.A. Yes, he did B. No, he did C. No, he didnt D. Yes, he didnt 2. Theres not much news in todays pa
13、per, _? A. isnt it B. are there C. is there D. arent there 3. The manager came here in a car, _? A. was he B. did he C. wasnt he D. didnt he 4. You are not a new member, are you? - _. I joined only yesterday. A. No, Im not B. Yes, Im not C. No, I am D. Yes, I am,知识点6 Tara works as hard as Tina. 塔拉学习
14、和蒂娜一样努力。 【讲解】Asas 意为和一样 , asas中间用形容词或副词的原级 (as +形容词原级/副词原级+as）,其否定结构为not asas，意为不像那样 I gets up as early as Jim. 我和吉姆起得一样早。 She isnt as beautiful as you. 她没你漂亮。 同级比较口诀：同级比较用原级，asas 永不离若是否定加not， asas否前者not加在asas前，说明两者有区别not加在soas前，后者总比前者强。 【即学活用】Lihuas shoes are as _as Zhanghuis.A. cheap B. cheaper C. cheapest D. not cheap,知识点7 Oh, which one was Lisa? 哦，哪一个是丽莎？【讲解】 Which在此问句中做形容词，后跟名词，意为哪一个。which city does she live? 她住在哪一个城市？ Which还可做疑问代词：which is your best friend, Tom or Lucy?哪一个是你最好的朋友，是汤姆还是露丝？【即学活用】 你想要哪一个苹果？ _,
