英語四級(jí)語法教程匯總和更新

1) 并列結(jié)構(gòu)中，or通常用于否定句，and用于肯定句。2) 但有時(shí)and 也可用于否定句。請(qǐng)注意其不同特點(diǎn)：There is no air or water i... [查看全文]

1) 事實(shí)狀態(tài)的動(dòng)詞have, belong, possess, cost, owe, exist, include, contain, matter, weigh, measure, continueI have t... [查看全文]

多個(gè)形容詞修飾名詞時(shí)，其順序?yàn)椋合薅ㄔ~--數(shù)詞--描繪詞--(大小，長(zhǎng)短，形狀，新舊，顏色) --出處--材料性質(zhì)，類別--名詞a small round... [查看全文]

1) since +過去一個(gè)時(shí)間點(diǎn)　如具體的年、月、日期、鐘點(diǎn)、1980, last month, half past six...I have been here since 1989.2)... [查看全文]

1) 用于完成時(shí)的區(qū)別延續(xù)動(dòng)詞表示經(jīng)驗(yàn)、經(jīng)歷； 瞬間動(dòng)詞表示行為的結(jié) 果，不能與表示段的時(shí)間狀語連用。He has completed the work.... [查看全文]

分詞前置　We can see the rising sun. 我們可以看到東升的旭日He is a retired worker.　 他是位退休的工人分詞后置 (i分詞詞... [查看全文]

1）have +過去分詞，構(gòu)成完成時(shí)態(tài)，例如：He has left for London.　他已去了倫敦。By the end of last month, they had fini... [查看全文]

1）協(xié)助主要?jiǎng)釉~構(gòu)成謂語動(dòng)詞詞組的詞叫助動(dòng)詞（Auxiliary Verb）。被協(xié)助的動(dòng)詞稱作主要?jiǎng)釉~（Main Verb）助動(dòng)詞自身沒有詞義，不可單獨(dú)... [查看全文]

1）相互代詞只有each other和one another兩個(gè)詞組。他們表示句中動(dòng)詞所敘述的動(dòng)作或感覺在涉及的各個(gè)對(duì)象之間是相互存在的，例如：It is... [查看全文]

1）物主代詞既有表示所屬的作用又有指代作用，例如：John had cut his finger; apparently there was a broken glass on his ... [查看全文]