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2021年6月英语四级语法用法辨析3篇

时间:2021-02-23来源:华宇网校作者:英语四级考试时间 英语四级网课

【文章简介】中国有“书读百遍,其义自见”的古谚,不断在夸大反复练习的关键性。2021年考试日趋邻近,多看书,勤做题是大有裨益的。华宇考试网为您提供了“2021年6月英语四级语法用法辨析3篇”,接待阅读参考!更多有关讯息请关注华宇考试网!


2021年6月英语四级语法用法辨析3篇


【篇一】2021年6月英语四级语法用法辨析


  1. 在系表构造后接不定式时,无法按汉语意义用“人”作主语,而用形式主语it。


  如:


  他有必要同咱们一走去。


  误:He's necessary to go with us.


  正:It's necessary for him to go with us.


  正:It's necessary that he (should) go with us.


  在以上后接 that 从句的句型中,从句谓语凡是要用假造语气。


  又如:


  It's necessary that he (should) buy a computer.


  他有必要买台电脑。


  It's necessary that we (should) ask for her advice.


  咱们有必要去收罗一下她的定见。


  2. 透露“对……有必要”,厥后可接介词 to 或 for。


  如:


  Food is necessary for [to] life.


  食品对性命是必要的。


  Sleep is necessary to [for] one's health.


  就寝对健康是必不行少的。


  当后接不定式的复合构造时,指导不定式逻辑主语的介词凡是只用for而不用 to。


  如:


  It's necessary for us learn a foreign language.


  咱们有必要考试复习一门外语。


  3. 可与 if, when, where, as, whenever, wherever, although等连词组成省略句(可以当作是此中省略了it is)。


  如:


  If necessary, ring me at home.


  若是必要,可往我家里打电话。


  Tell him all about it when necessary.


  在必需的时候把全部都告诉他。


  Where necessary, improvements will be made.


  哪儿需要,就在哪儿革新。


  They believed in the application of force wherever necessary.


  凡是属必要之处他们都主意运用武力。


  别的,注重习语as necessary(按需要,根据需要),than necessary(比需要的更)。


  如:


  We'll be adding more workers as necessary. 咱们会按需要增添更多的工人。


  I drove ten miles farther than necessary. 我开车开过了10英里。

【篇二】2021年6月英语四级语法用法辨析


  1. 与 can, be able to 等连用,透露“担当得起”某事或某物的价格、丧失、结果等,或透露“抽得出”时间等,后面凡是可接名词、代词、不定式等(多用于否认句或疑难句)。如:


  I can't afford (to buy) a new coat. 我没钱买件新外套。


  He can't afford the time for it. 他抽不出时间来做此事。


  He says he really can't afford to wait another day. 他说他的确一天也无法再等了。


  2. 透露“提供”“赐与”,厥后可以接双宾语(直接宾语凡是为笼统观点),若双宾语交流地位,要用介词 to(此时无需连用 can, be able to等)。如:


  他的来访给咱们带来极大的高兴。


  正:His visit affords us great pleasure.


  正:His visit affords great pleasure to us.

【篇三】2021年6月英语四级语法用法辨析


  owever与but 的用法差别


  二者都可透露转机或比照,意为“但是”、“可是”、“但是”等,但有差别:


  1. 透露转机时,but 是连词。如:


  He is young but very experienced. 他虽年老,但经验很富厚。


  He has three daughters but no sons. 他有3 个女儿,但没有儿子。


  He likes sports, but his wife likes music. 他爱好活动,而他老婆则爱好音乐。


  2. however 透露“但是”、“可是”时,有的词书以为它是连词,有的词书以为它是副词。之因此将其视为副词,大概是由于像很多副词同样不只能位于句首,并且能位于句中(注重先后运用逗号),乃至句末 (注重其前也用逗号)。如:


  Later, however, he changed his mind. 可是他厥后改动了主见。


  He hasn't arrived. He may, however, come later. 他尚未到,不外他等会儿能够会来。


  He said that it was so; he was mistaken, however. 他讨情况云云,可是他错了。


  注:以上各例中的 however 无法换成 but,但可用 but 来改写。如:


  He said that it was so, but he was mistaken. 他讨情况云云,可他错了。


  3. 当连接两个句子时,其前凡是应用分号,或另起新句。如:


  It's raining hard; however, I think we should go out. / It's raining hard. However, I think we should go out. 雨下得很大,但我想咱们还得进来。


  注:上例中的 however 无法换成 but,但可用 but 来改写 (注重所用标点的改动)。如:


  It's raining hard, but I think we should go out.

  

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