新目标八年级上UnitSectionAGrammarfocuscPPT课件

1、1. 形容词的原级 形容词的形容词的原形。2. 形容词的比较级 表示两者相比，一个比另一个表示两者相比，一个比另一个更更，有比，有比 较级的句中有较级的句中有than, ,且仅限于且仅限于两者比较两者比较。形容词的原级和比较级第1页/共27页This tree is _ than that tree.She is _ than before.tallerthinnerPast Now比较级第2页/共27页一、句子结构:1. 形容词比较级常用的句型结构 (A和B比较)： A + be动词+形容词的比较级+than +Be.g. Im taller than you. You are thinne

2、r than me. This ruler is longer than that one.第3页/共27页2. 副词比较级常用的句型结构副词比较级常用的句型结构： “A + 动词动词 + 副词比较级副词比较级 + than + B”。e.g. I got up earlier than my mother this morning.我今天早晨起床比我妈妈还早。我今天早晨起床比我妈妈还早。Tina sings more loudly than Tara。Tina 比比 Tara 唱的更大声。唱的更大声。第4页/共27页 1. 单音节和少数双音节形容词、副词比较级的构成。不规则变化： 1) 在词

3、尾加-er tall taller smartsmarter short shorter high higher fast - faster二、形容词、副词比较级的二、形容词、副词比较级的变化规则:第5页/共27页2) 以不发音的字母e 结尾的，加 -r nice nicer large larger fine finer late later第6页/共27页3)重读闭音节以一个辅音字母结尾的，先双写辅音字母，再加-er。 big bigger fat fatter thin thinner red redder hot hotter wet wetter4)以辅音字母以辅音字母+y结尾的双音

4、节词，先改结尾的双音节词，先改y为为i，再加，再加-er。 happyhappier early earlier funnyfunnier easy easier第7页/共27页5)多音节词和部分双音节词要在前面加more important more important delicious more delicious expensive more expensive outgoing more outgoing tired more tired serious more serious slowly- more slowly第8页/共27页比较级有规律, 词尾加上-er两兄弟;要是以e来结

5、尾, 只有小二(r)跟上去;重读闭音节词要牢记, 双写千万别忘记;要是“辅音+y”来结尾, 小艾(i)要把y来替, 再加-er两兄弟; 多音节词加上m-o-r-e, 你看这样多容易。第9页/共27页 good better well better bad worse badly worse many / much more little less far farther / further 三、形容词、副词比较级的三、形容词、副词比较级的不规则变化:注：需一一记住典型的不规则词注：需一一记住典型的不规则词第10页/共27页The pink bag is as _ as the purple o

6、ne.big同级比较Lingling runs as _ as Li Lei.fast第11页/共27页肯定句肯定句： Tara is as friendly as Tina. Tara和和Tina一样友好。一样友好。 Tara works as hard as Tina. Tara工作和工作和Tina一样努力。一样努力。一、句型:as as 和一样表示修饰的两种东西的程度是一样的。第12页/共27页 否定句否定句： Lily is not so/as tall as Mary. 莉莉不如玛丽高。莉莉不如玛丽高。(莉莉比玛丽矮。莉莉比玛丽矮。) Tara doesnt work so/as h

7、ard as Tina. Tara 工作不如工作不如Tina努力。努力。 (Tina 工作比工作比Tara 更努力。更努力。)not as / so as 不如、比不上 表示前者不如、比不上后者。第13页/共27页二、句子结构:1. 形容词同级比较常用的句型结构 (A和B比较)： A + be动词+ as +形容词的原级 + as +Be.g. She is as quiet as you. You are as thin as your sister. This ruler is as long as that one.(以以asas为例为例)第14页/共27页2. 副词同级比较常用的句型结

8、构 (A和B比较)： A + 动词+ as +副词的原级 + as +Be.g. Peter runs as slowly as Tony. Tara works as hard as Tina. 第15页/共27页一些带有 as . as 结构的常见短语归纳： as busy as a bee 像蜜蜂一样忙碌 as easy as ABC 像ABC一样容易 as deep as a well 像井一样深 as light as a feather 像羽毛一样轻 as soft as butter 像黄油一样软 as rich as a Jew 像犹太人一样富裕第16页/共27页20 kghe

9、avier15 kgheavy第17页/共27页manymore第18页/共27页Use the words to write questions and answers.3a1. Julie /tall / you Q: _ A: No, she isnt. Shes _ than me.2. Jack/ run/ fast / Sam Q: _ A: No, he doesnt. He runs _ than Sam.Is Julie as tall as you?tallerDoes Jack run as fast as Sam? faster 第19页/共27页3. Your cou

10、sin / outgoing / you Q: _ A: No, she isnt. Shes _ than me.4. Paul / funny / Carol Q: _ A: No, he doesnt. Hes _ than Carol.Is your cousin as outgoing as you? more outgoing Is Paul as funny as Carol? funnier 第20页/共27页3cCompare your parents. Check () who is smarter, funnier, etc. in the chart. Then ask

11、 your partner about his/her parents.A: Who is smarter, your mother or your father?B: I think my mother is smarter than my father.第21页/共27页Describe one of your classmates, and then let other students guess who he / she is.She is taller than me. She has longer hair than me. She wears glasses / a blue jacket Who is she?第22页/共27页 Good, better, bestGood, better, best, Never let it rest, Till good