日期:2023-03-23 13:25 点击:
由"let"带头的祈使句(Imperative Sentences)是个常见的动词句型,它的主要用法有下列三种:
1.表示“建议”。
这个句型里的"let"后头紧跟着一个第一人称的代词宾语,如:
(1) Let me try.
(2) Let's do it.
(3) Let me go and look for it.
这个句型语气委婉,比直接的祈使句客气。试比较(4)a和(4)b:
(4) a. Don't disturb him.
b. Let's not disturb him.
(a)是直接命令,语气强烈,不如(b)温柔悦耳。
2.表示“间接命令”或“愿望”。
这句型里的动词宾语是第三人称名词或代词,如:
(5) Let Robert take charge of the marketing department.
(6) Let her join our choir.
3.表示“警告”、“蔑视”、“威胁”等。
这种祈使句里的宾语也是第三人称为主。除了口气凶悍之外,有时还语带讽刺,如:
(7) Let him try and he will expose his inability to work on his own.
(8) Let the invaders come and our armed forces will wipe them out in no time.
用"let"的祈使句时,必须注意下列几点:
一、"let" 的否定句有二。如果宾语是第三人称用"Don't let……"(见例(9));如果宾语是第一人称,则用"Let……not" (见例(10)):
(9) Don't let this type of things happen again.
(10) It's raining now. Let's not go out until after the rain.
二、"Let"只适用于现在时态,可以有被动语态 (the passive voice),如:
(11) Let the recalcitrant criminals be sent to prison.
(12) Let all the dedicated capable staff be promoted.
三、"Let"后头除了是不带"to"的不定式动词 (The infinitive without"to")之外,还可以是某些适当的副词,如out, in, down, alone等:
(13) Let the puppy out.
(14) Open the windows and let the fresh air in.
(15) The room is too sunny. Let the blinds down.
(16) Let me alone, please.
四、用"Let's"时,把谈话者的对象包括在内;用"Let us"时,并不包括对方,如:
(17) Let's try it, shall we?
(18) Let us do it by ourselves, will you?
从(17)里的"shall we"和(18)里的"will you",不难知道前者包括听话人,后者并没有。
思源教育(原上海交大思源进修学院,简称思源教育)成立于1996年,自建校以来,秉承交大校训,依托名校师资,提供专业的托班辅导、青少年英语辅导、小学辅导、初中辅导、高中辅导、高考高复、三校生高复、艺考生文化课等,学生遍及全市各区,至今已帮助六万多余名学子取得优异成绩,成功考入理想的各级院校!20余年来思源已成为“中考教学研究中心”、“中学个性化学习教育基地”、“快速学习法”实验学校。