初一英语单元知识一点通(Units5～7)

U nit5H ow old is he?●单元知识点拨Ⅰ.he,she,it的用法he,she只能用来指人,意思分别为“他”和“她”,it可用来指人,也可用来指物,指人时一般指代婴儿或性别不明者。例如:①—W here is the baby?这个婴儿在哪儿?—Itis in the room.在房间里。②—W ho is knocking atthe door?谁在敲门?—I think it is Li Lei.我想是李雷。Ⅱ.疑问句到本单元为止,我们共学了三种疑问句:①像“Is this a car?”那样能用yes或no来回答的疑问句,叫做一般疑问句。②像“W here is thepencil?”那样由w hat,where,how等特殊疑问词开头用来对句子某一部…