一句話區別開used to do, be used to do和be used to doing

例句:I used to cut fruit with the knife which is used to cut meat, so now I am used to eating fruit with the flavor of meat.

直譯:我過去常常用切肉的刀來切水果,所以現在我習慣於吃帶肉味的水果了。


一句話區別開used to do, be used to do和be used to doing


解析:1.used to do sth.表示“過去常常做某事”變否定句既可以在used的前方加didn't,也可以在used後方加not.

I used to be short, but now I am tall.

我過去很矮,但是現在很高。

He used to be afraid of dark, didn't he? / usedn't he?

他過去很怕黑,不是嗎?

be used to do sth.表示“被用來做某事”,這是一個完整的被動語態形式。to do可以用介詞for來替換,be used for sth.

Knives are used to cut fruit.

刀用來切水果。

Knives are used for cutting.

刀用來切東西。

be used to doing sth.表示“習慣於做某事”,此處的to是一個介詞,介詞後一律加動詞的ing形式。

I am used to walking along the river after dinner.

我習慣於飯後沿著河邊走一走。

PS:常見的to是介詞的短語。

be accustomed to doing

devote oneself to doing

look forward to doing

pay attention to doing

prefer doing to doing


一句話區別開used to do, be used to do和be used to doing


2.介詞with的用法。cut fruit with the knife.表示“用刀切水果”。with介詞短語來作方式狀語,是“使用”的意思。在with和工具之間要有限定詞;

fruit with the flavor of meat 表示“有肉味的水果”。此處的with介詞短語來作定語,意思是“帶有……的”。介詞短語作定語放在被修飾名詞的後方。

介詞知識在動詞後方作狀語,在名詞後方作定語。

Susan often goes shopping with her mother on weekends.(with作伴隨狀語)

Susan經常在週末和媽媽一起購物。

The house with a beautiful garden belongs to Mr. Smith.(with作定語)

帶有漂亮花園的房子歸屬Smith先生。


一句話區別開used to do, be used to do和be used to doing


3.定語從句。先行詞knife,定語從句中缺少主語,所以要用指代物的關係代詞which。還可以用that。關係代詞作主語不可以省略,作賓語時可以省略。

The noodles that / which I cooked were delicious.(先行詞是noodles, 從句中缺少賓語,所以要用指代物的關係代詞,that或which, 還可以省略)

我做的麵條很好吃。


一句話區別開used to do, be used to do和be used to doing


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