Lesson3TheSeaWorld

1、3 The Sea World,Language notes,倍数表达方式 Its three times as big underwater. Some fish can produce sounds almost twice as loud as your speaking voice! 当我们要表达甲是乙的几倍时，通常用下面三个句型来表示： “A+倍数+形容词或副词的比较级+than+B”，表示“A比B大（长、高、宽等）多少倍”。如： This rope is twice longer than that one. 这根绳子是那根绳子的两倍长（比那根绳子长一倍）。,“A+倍数+as+形容

2、词或副词的原级+as+B”，表示“A正好是B的多少倍”。如： Asia is four times as large as Europe. 亚洲的面积是欧洲的四倍。 “A+倍数+the size/height/length/width, etc.+of+B”，表示“A正好是B的多少倍”。如： This street is four times the length of that one. 这条街是那条街的四倍长。 This hill is four times the height of that small one. 这座山的高度是那座小山的四倍。 2.比较结构主要有三种：asas/ mo

3、rethan/ the most asas中间用的是形容词或副词的原级。意思是达到与什么相同的程度。,Practice,他捕了一条和自己一样大的鱼。,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.,鲨鱼可没海豚那么友善。,morethan它的基本模式是：形容词或副词比较级 + than-分句 例如： The car runs faster than that one. To die for

4、the people is weightier than Mount Tai. 这种结构的否定形式用lessthan 表示： This parcel is less heavy than that one. The car runs less fast than that one. It takes less time to go there by bus than by boat.,Practice,企鹅比北极熊滑稽。,Penguins are funnier than polar bears.,Practice,A shark is not as friendly as a dolphin

5、.,A shark is less friendly than a dolphin.,鲨鱼没有海豚那么友善。,the most形容词和副词最高级 See some of the most beautiful coral and the most unusual fish in the world. Look carefully for the tiniest fish in the world.,The _fish in the sea is the shark.,The _ fish in the sea is the flying fish.,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,Homewo