小升初_lesson_7第二课时_新城_65.ppt

* Which is the longest river in the world? Lesson 7 第二课时 Big Birds most 最多的 today 今天 fly飞 heavy 重的 their 他们的 wing 翅膀 strong 强壮的 neck 脖子 child小孩 eye 眼睛 fast 迅速的 people 人们 even 甚至 horse 马 lay下蛋 feed 喂 feed 喂 kid 小孩子 enough 足够的 Most birds are small. But some birds are really , really big. They are bigger than you ! The biggest birds today are the ostriches. Can they fly ? No, big birds can’t fly. They are too heavy, and their wings are not strong enough. The ostrich is the biggest bird in the world. Its neck is longer than a child . Its eyes are very , very big. Ostriches are fast. They run faster than people. An ostrich can even run faster than a horse ! Look ! Big birds lay big eggs. An ostrich egg can feed lots of kids. Grammar 形容词的比较等级 形容词的比较等级 形容词有原级，比较级和最高级，都是用来表示事物等级差别的。 规则变化有： 1，比较级和最高级的构成在词尾加er, est shortest shorter short tallest taller tall smallest smaller small 最高级 比较级 原级 2, 以e结尾的单词加 r , st . largest larger large nicest nicer nice 最高级 比较级 原级 *