如题所述
be used to do这个结构在英语中具有多种灵活的应用。首先,当sth(某物)是主语时,"be used to do"表示某物被用来执行某项功能,如"The mood is used to make desks",意思是情绪被用来制作课桌。其次,当sb(某人)是主语时,"be used to doing sth"表示某人习惯于或适应了做某事,如"I am/get/become used to getting up early",强调的是习惯早起的行为。最后,"used to do"表示过去常常做某事,但现在已经不再做了,如"She used to help me clean the room",反映出过去的行为与现在的对比。
这种用法不仅限于日常场景,还可以用于更专业的语境。例如,"This powerful drug is used to tranquilize patients undergoing surgery",强效药剂在手术中发挥麻醉作用。同样,"The test is used to diagnose a variety of diseases",化验在疾病诊断中扮演重要角色。此外,"They used to buy ten kilos of beef in one lump"描述了过去的购买习惯,而"We used to be rushed off our feet at lunchtimes"则反映了过去繁忙的工作节奏。最后,"The old-timers used to recall how hot 1886 was"展示了对历史记忆的回顾。
这种用法不仅限于日常场景,还可以用于更专业的语境。例如,"This powerful drug is used to tranquilize patients undergoing surgery",强效药剂在手术中发挥麻醉作用。同样,"The test is used to diagnose a variety of diseases",化验在疾病诊断中扮演重要角色。此外,"They used to buy ten kilos of beef in one lump"描述了过去的购买习惯,而"We used to be rushed off our feet at lunchtimes"则反映了过去繁忙的工作节奏。最后,"The old-timers used to recall how hot 1886 was"展示了对历史记忆的回顾。
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