1、M3 U7 LESSON 3-2,The Sea World,Grammar,Objectives,By the end of the lesson, youll be able to tell the rules of making comparison; use the structures to make comparison.,Structure & meaning,They have a huge mouth and can eat fish as big as themselves. The tiniest fish is not as big as a fly in your h

2、ouse.,和一樣,不如,同級表達形式：(not) as + 原形 + as,What do they have in common?,as big as,not as big as,Practice,他捕了一條和自己一樣大的魚。,He caught a fish as big as himself.,The fish he caught is as big as himself.,Practice,A shark is not as friendly as a dolphin.,鯊魚可沒海豚那么友善。,比較級表達形式：原形+er； more / less +原形,Crabs are smal

3、ler creatures in the sea. Penguins are more friendly than seals. Flying fish are less colorful than some other fish.,Structure & meaning,Can you summarize the rule?,Practice,企鵝比北極熊滑稽。,Penguins are funnier than polar bears.,Practice,A shark is not as friendly as a dolphin.,A shark is less friendly th

4、an a dolphin. less + 形容詞比較級+than 表一方不及另一方,鯊魚沒有海豚那么友善。,最高級表達形式：原形+est； most+原形,You can see some of the strangest fish in the world. Virtual voyage is our most up-to-date attraction.,Structure & meaning,What rules do you find?,The _fish in the sea is the shark.,The _ fish in the sea is the flying fish

5、.,most unusual,most dangerous,Practice,Practice,smaller,the most intelligent,The biggest,the most popular,the easiest,better,the friendliest,1 2 3 4,5 6 7,常見難點句式,1. 倍數(shù)與差額,Some fish can produce sounds almost twice as loud as your speaking voice!,Their school yard is four times as large as ours.,He is

6、 a head taller than I am.,We arrived there two hours earlier than the other team.,常見難點句式,表示倍數(shù)的四個句型： 1. times as +原級 +as (once一倍 twice/double兩倍 三倍以上用基數(shù)詞，three/four/five/ times三/四/五.倍) This road is 4 times as big as that one. 2. times + 比較級 + than 3. times the + length/size/weight/height/width/depth +

7、 of + The road is 4 times the length of that one. 4.用介詞by表達相差的程度 She is taller than I by 3 centimetre.,常見難點句式,1. 倍數(shù)與差額,姚明快有兩個我那么高了。,你的門票比我的便宜一百元。,Yao Ming is almost twice as tall as I am.,Your ticket is 100 yuan cheaper than mine.,2. 比較級表示最高級：not+比較級=最高級,常見難點句式,You certainly wont find a noisier fish

8、.,The movie is fantastic. Ive never seen a better one.,I cant agree more.,China is larger than any countries in Africa.,He is taller than any other boys in the class.,常見難點句式,3. 比較級的固定句型 1.the +比較級，the +比較級 越越,The sooner ，the better.,The less I worried, the better I worked.,The more you eat, the heav

9、ier you become.,The stronger the wind, the stronger the tree.,Now, your turn please.,常見難點句式,2.比較級+and+比較級 表“越來越” 3.比較級的修飾詞 原級：fairly，quite，rather，so，very，so，too等 比較級：much，even，far，rather，still，any，a bit，a little等 最高級：by far，almost，nearly等 （以上詞，除了by far外，必須置于所修飾的形容詞或副詞的比較級前。）,4.As引導(dǎo)的比較級 as + 形容詞/副詞+as 或 not as+ 形容詞/副詞+ as 該句型用來描述兩個比較對象在程度上的相似或不同。 as many/few + 可數(shù)名詞復(fù)數(shù)+as 或as much/little (少的)+不可數(shù)名詞+as 前者描述數(shù)目上的接近，后者描述量的接近。 You may borrow as many books as you can。,Check your learning,1. 變?yōu)楸容^級和最高級形式,stron