比較while, when, as 1)as, when 引導(dǎo)短暫性動作的動詞。 Just as / Just when / When I stopped my car, a man came up to me. 2)當(dāng)從句的動作發(fā)生于主句動作之前,只能用when 引導(dǎo)這個從句,不可用as 或 while
讓步狀語從句 1)though, although 注意:當(dāng)有though, although時,后面的從句不能有but,但是 though 和yet可連用 Although it s raining, they are still working in the field. 雖然在下雨,但他們?nèi)栽诘乩锔苫?
條件狀語從句 連接詞主要有 if, unless, as/so long as, on condition that 等。. if 引導(dǎo)的條件句有真實條件句和非真實條件句兩種。非真實條件句已在虛擬語氣中闡述。 unless = if not. Let s go out for a walk u
目的狀語從句 表示目的狀語的從句可以由that, so that, in order that, lest, for fear that, in case等詞引導(dǎo),例如: You must speak louder so that /in order that you can be heard by all. He wrote the name
方式狀語從句 方式狀語從句通常由as, (just) as so , as if, as though引導(dǎo)。 1) as, (just) as so 引導(dǎo)的方式狀語從句通常位于主句后,但在(just) as so 結(jié)構(gòu)中位于句首,這時as從句帶有比喻的含義,意思是 正如
地點狀語從句 地點狀語從句通常由where, wherever 引導(dǎo)。 Where I live there are plenty of trees. 我住的地方樹很多。 Wherever I am I will be thinking of you. 不管我在哪里我都會想到你。 點擊查看更多:更多
與后接名詞或代詞保持一致 1) 用half of, part of, most of, a portion of 等詞引起主語時,動詞通常與of后面的名詞,代詞保持一致。 Most of his money is spent on books. Most of the students are taking an a
謂語需用單數(shù) 1) 代詞each和由every, some, no, any等構(gòu)成的復(fù)合代詞作主語,或主語中含有each, every, 謂語需用單數(shù)。 Each of us has a tape-recorder. There is something wrong with my watch. 2) 當(dāng)主語是一
謂語動詞與前面的主語一致 當(dāng)主語后面跟有with, together with, like, except, but, no less than, as well as 等詞引起的短語時,謂語動詞與前面的主語一致。 The teacher together with some students is visitin
主謂一致中的靠近原則 1)當(dāng)there be 句型的主語是一系列事物時,謂語應(yīng)與最鄰近的主語保持一致。 There is a pen, a knife and several books on the desk.. There are twenty boy-students and twenty-three girl
并列結(jié)構(gòu)作主語時謂語用復(fù)數(shù) Reading and writing are very important. 注意:當(dāng)主語由and連結(jié)時,如果它表示一個單一的概念,即指同一人或同一物時,謂語動詞用單數(shù),and 此時連接的兩個詞前只有一個冠詞。 The ir
時態(tài)一致 1) 如果從句所敘述的為真理或不變的事實,則永遠(yuǎn)用現(xiàn)在時。 At that time, people did not know that the earth moves. He told me last week that he is eighteen. 2) 賓語從句中的助動詞ought, need, mu
現(xiàn)在進(jìn)行時代替將來時 1) 表示即將發(fā)生的或預(yù)定中計劃好的活動。 Are you staying with us this weekend? 這周和我們一起度周末嗎? We are leaving soon. 我們馬上就走。 2) 漸變動詞,如:get, run, grow, become,
一般現(xiàn)在時代替將來時 (1)時間狀語從句,條件句中,從句用一般現(xiàn)在時代替將來時 When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether,
過去進(jìn)行時 1) 概念:表示過去某時正在進(jìn)行的狀態(tài)或動作。 2) 過去進(jìn)行時的主要用法是描述一件事發(fā)生的背景;一個長動作發(fā)生的時候,另一個短動作發(fā)生。 3) 常用的時間狀語 this morning, the whole morning, all
不用進(jìn)行時的動詞 1) 事實狀態(tài)的動詞 have, belong, possess, cost, owe, exist, include, contain, matter, weigh, measure, continue I have two brothers. This house belongs to my sister. 2) 心理狀態(tài)的動詞
現(xiàn)在進(jìn)行時 現(xiàn)在進(jìn)行時的基本用法: a. 表示現(xiàn)在( 指說話人說話時) 正在發(fā)生的事情。 We are waiting for you. b. 習(xí)慣進(jìn)行:表示長期的或重復(fù)性的動作,說話時動作未必正在進(jìn)行。 Mr. Green is writing another no
將來完成時 1) 構(gòu)成will / be going to do sth. 2) 概念 a. 狀態(tài)完成:表示某事繼續(xù)到將來某一時為止一直有的狀態(tài)。 b. 動作完成:表示將來某一時或另一個將來的動作之前,已經(jīng)完成的動作或一獲得的經(jīng)驗。 They wil
用一般過去時代替完成時 1)兩個動作如按順序發(fā)生,又不強調(diào)先后,或用then,and,but 等連詞時,多用一般過去時。 When she saw the mouse,she screamed. My aunt gave me a hat and I lost it. 2 ) 兩個動作相繼
過去完成時 1)概念:表示過去的過去 --那時以前--那時--現(xiàn)在-- 其構(gòu)成是had +過去分詞構(gòu)成。 2)用法 a.在told, said, knew, heard, thought等動詞后的賓語從句。 She said (that) she had never been to Paris. b
比較since和for Since 用來說明動作起始時間,for用來說明動作延續(xù)時間長度。 I have lived here for more than twenty years. I have lived here since I was born.. My aunt has worked in a clinic since 1949.
用于現(xiàn)在完成時的句型 1)It is the first / second time . that 結(jié)構(gòu)中的從句部分,用現(xiàn)在完成時。 It is the first time that I have visited the city. 這是我第一次訪問這座城市。 It was the third time that
一般現(xiàn)在時表將來 1)下列動詞:come, go, arrive, leave, start, begin, return的一般現(xiàn)在時表將來。這主要用來表示在時間上已確定或安排好的事情。 The train leaves at six tomorrow morning. When does the bus
be going to / will 用于條件句時, be going to 表將來 will 表意愿 If you are going to make a journey, you d better get ready for it as soon as possible. Now if you will take off your clothes, we will
一般將來時 1) shall用于第一人稱,常被will 所代替。 will 在陳述句中用于各人稱,在爭求意見時常用于第二人稱。 Which paragraph shall I read first. Will you be at home at seven this evening? 2) be going
used to / be used to used to + do: 過去常常 表示過去習(xí)慣性的動作或狀態(tài),但如今已不存在。 Mother used not to be so forgetful. Scarf used to take a walk.(過去常常散步) be used to + doing:對 已感到習(xí)
一般過去時的用法 1)在確定的過去時間里所發(fā)生的動作或存在的狀態(tài)。 時間狀語有:yesterday, last week, an hour ago, the other day, in 1982等。 Where did you go just now? 2)表示在過去一段時間內(nèi),經(jīng)常性或
一般現(xiàn)在時的用法 1) 經(jīng)常性或習(xí)慣性的動作,常與表示頻腮度的時間狀語連用。 時間狀語:every , sometimes,at , on Sunday I leave home for school at 7 every morning. 2) 客觀真理,客觀存在,科學(xué)事實。 The e
反意疑問句 1)陳述部分的主語是I,疑問部分要用 aren t I. I m as tall as your sister,aren t I? 2)陳述部分的謂語是wish,疑問部分要用may +主語。 I wish to have a word with you, may I? 3)陳述部分用 no, no
用助動詞進(jìn)行強調(diào) 強調(diào)句還有一種類型,就是用助動詞do (did,does) 強調(diào)謂語。 She does like this horse. 她的確喜歡這匹馬。 Please do take care of yourself. 千萬保重。 點擊查看更多:更多語法知識 奧數(shù)網(wǎng)
強調(diào)句結(jié)構(gòu) 常考的強調(diào)句結(jié)構(gòu)是it 引導(dǎo)的句子。 It is (was) 被強調(diào)部分+ that (who) + 句子其他部分。 此結(jié)構(gòu)強調(diào)的成分僅限于主語,賓語和狀語。 It is from the sun that we get light and heat. It was not unt