20个简单的语法规则

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Here are 20 simple rules and tips to help you avoid mistakes in English grammar.
这里有20个简单的规则和提示,可以帮助您避免英语语法错误。

1. A sentence starts with a capital letter and ends with a period/full stop, a question mark or an exclamation mark.
一个句子以大写字母开头,以句号/句号,问号或感叹号结束。 

  • The fat cat sat on the mat.
  • Where do you live?
  • My dog is very clever!

2. The order of a basic positive sentence is Subject-Verb-Object. (Negative and question sentences may have a different order.)
基本正面句子的顺序是Subject-Verb-Object。 (否定句和问句可能有不同的顺序。)

  • John loves Mary.
  • They were driving their car to Bangkok.

3. Every sentence must have a subject and a verb. An object is optional. Note that an imperative sentence may have a verb only, but the subject is understood.
每个句子都必须有一个主语和一个动词。对象是可选的。请注意,命令性句子可能只有动词,但理解主语。

  • John teaches.
  • John teaches English.
  • Stop! (ie You stop!)

4. The subject and verb must agree in number, that is a singular subject needs a singular verb and a plural subject needs a plural verb.
主语和动词必须在数量上达成一致,即单数主语需要单数动词,复数主语需要复数动词。

  • John works in London.
  • That monk eats once a day.
  • John and Mary work in London.
  • Most people eat three meals a day.

5. When two singular subjects are connected by or, use a singular verb. The same is true for either/or and neither/nor.
当两个单数主语通过or连接时,请使用单数动词。对于either/orneither/nor也是如此。

  • John or Mary is coming tonight.
  • Either coffee or tea is fine.
  • Neither John nor Mary was late.

6. Adjectives usually come before a noun (except when a verb separates the adjective from the noun).
形容词通常出现在名词之前(除非动词将名词与名词分开)。

  • I have a big dog.
  • She married a handsome Italian man.
  • (Her husband is rich.)

7. When using two or more adjectives together, the usual order is opinion-adjective + fact-adjective + noun. (There are some additional rules for the order of fact adjectives.)
当一起使用两个或多个形容词时,通常的顺序是:意见形容词+事实形容词+名词。 (对于事实形容词的顺序还有一些额外的规则。)

  • I saw a nice French table.
  • That was an interesting Shakespearian play.

8. Treat collective nouns(eg committee, company, board of directors) as singular OR plural. In BrE a collective noun is usually treated as plural, needing a plural verb and pronoun. In AmE a collective noun is often treated as singular, needing a singular verb and pronoun.
将集体名词(例如委员会,公司,董事会)视为单数或复数。在BrE中,集体名词通常被视为复数,需要复数动词和代词。在AmE中,集体名词通常被视为单数,需要单数动词和代词。

  • The committee are having sandwiches for lunch. Then they will go to London. (typically BrE)
  • The BBC have changed their logo. (typically BrE)
  • My family likes going to the zoo. (typically AmE)
  • CNN has changed its logo. (typically AmE)

9. The words its and it’s are two different words with different meanings.
单词 itsit’s是两个不同含义的不同单词。

  • The dog has hurt its leg.
  • He says it’s two o’clock.

10. The words your and you’re are two different words with different meanings.
单词youryou’re是两个不同含义的单词。

  • Here is your coffee.
  • You’re looking good.

11. The wordstheretheir and they’re are three different words with different meanings.
单词theretheirthey’re是三个不同的含义不同的单词。

  • There was nobody at the party.
  • I saw their new car.
  • Do you think they’re happy?

12. The contraction he’s can mean he is OR he has. Similarly, she’s can mean she is OR she has, and it’s can mean it is OR it has, and John’scan mean John is OR John has.
*缩写he’s可能意味着he ishe has。同样地,she’s可以表示she isshe hasit’s可以表示it isit has,而John’s可以表示John isJohn has

  • He is working
  • He has finished.
  • She is here.
  • She has left.
  • John is married.
  • John has divorced his wife.

13. The contraction he’d can mean he had OR he would. Similarly, they’dcan mean they had OR they would.
收缩he’d可能意味着he had 或者he would。同样地,they’d可能意味着they had或者they would

  • He had eaten when I arrived.
  • He would eat more if possible.
  • They had already finished.
  • They would come if they could.

14. Spell a proper noun with an initial capital letter. A proper noun is a “name” of something, for example, Josef, Mary, Russia, China, British Broadcasting Corporation, English.
拼写一个带有首字母大写字母的专有名词。专有名词是某物的”名称”,例如Josef, Mary, Russia, China, British Broadcasting Corporation, English。

  • We have written to Mary.
  • Is China in Asia?
  • Do you speak English?

15. Spell proper adjectives with an initial capital letter. Proper adjectives are made from proper nouns, for example, Germany → German, Orwell → Orwellian, Machiavelli → Machiavellian.
使用首字母大写拼写正确的形容词。适当的形容词由专有名词面来,例如: Germany → German, Orwell → Orwellian, Machiavelli → Machiavellian

  • London is an English town.
  • Who is the Canadian prime minister?
  • Which is your favorite Shakespearian play?

16. Use the indefinite article a/an for countable nouns in general. Use the definite article thefor specific countable nouns and all uncountable nouns.
一般使用不定冠词a/an作为可数名词。对特定的可数名词和所有不可数名词使用定冠词the

  • I saw a bird and a balloon in the sky. The bird was blue and the balloon was yellow.
  • He always saves some of the money that he earns.

17. Use the indefinite article a with words beginning with a consonant sound. Use the indefinite article an with words beginning with a vowel sound. see When to Say a or an

  • a cat, a game of golf, a human endeavor, a Frenchman, a university (you-ni-ver-si-ty)
  • an apple, an easy job, an interesting story, an old man, an umbrella, an honorable man (on-o-ra-ble)

18. Use many or few with countable nouns. Use much/a lot or little for uncountable nouns. 
使用 many few 和可数名词。使用much/a lotlittle用于不可数名词。

  • How many dollars do you have?
  • How much money do you have?
  • There are a few cars outside.
  • There is little traffic on the roads.

19. To show possession (who is the owner of something) use an apostrophe + s for singular owners, and s + apostrophe for plural owners.
用名词所有格表达所属

  • The boy’s dog. (one boy)
  • The boys’ dog. (two or more boys)

20. In general, use the active voice (Cats eat fish) in preference to the passive voice(Fish are eaten by cats).
一般情况下,使用主动声音(猫吃鱼)优先于被动声音(鱼被猫吃掉)。

  • We use active in preference to passive.
  • Active is used in preference to passive.
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