七下英语语法总结(人教版),要细致一些,粗略地不要答:first, second, third; fifth, eighth, ninth, twelfth; seventh, tenth, thirteenth, hundredth; twenty-twentieth, forty-fortieth, ninety-ninetieth二、七年级英语语法——句式1.陈述句肯定陈述句 a) This is a book. (be动词)b) He looks very young. (连系动词)c) I want a sweat like this. (实...