1.作主語
This is what I want.這就是我想要的。
This is yours and that is mine.這是你的,那是我的。
2.作表語
What I want to say is this.我想說的就是這點。
What I want is that.我想要的是那個。
3.作賓語
I like these and he likes those.我喜歡這些,他喜歡那些。(動詞賓語)
I’m one with you on this.在這點上我和你意見一致。(介詞賓語)
4.作定語
I want this book,not that book.我要這本書,不是那本書。
These computers are cheap.這些電腦便宜些。