初中語法一般現(xiàn)在時
我們的英語語法有哪些，大家知道嗎?接下來，小編給大家準備了初中語法一般現(xiàn)在時,歡迎大家參考與借鑒。
初中語法一般現(xiàn)在時
一、表示一般性或經(jīng)常發(fā)生的動作或狀態(tài)
1) In general [A] ， newspapers emphasize current news， whereas1 [B] magazines dealt [C] more with [D] background materials.
2) The adult mosquito usually lives for about [A] thirty days， although [B] the life span2 varied3 [C] widely with temperature， humidity4， and other [D] factors of the environment.
3) Industrial buyers [A] are responsible [B] for supplying [C] the goods and services that an organization required [D] for its operations.
二、表示習慣性動作和狀態(tài)或普遍的現(xiàn)象或常識
4) It is an accepted [A] custom in west countries that [B] men removed [C] their hats when a woman enters [D] the room.
5) Certain layers of the atmosphere have special names .
[A]which indicated their character properties
[B]whose characteristic properties were indicating
[C]what characterize5 their indicated properties
[D]that indicate their characteristic properties
三、表示客觀事實、客觀規(guī)律和客觀真理。在賓語從句中，即使主句的謂語動詞用了過去時，只要從句表示的是客觀真理，從句的謂語動詞也要用一般現(xiàn)在時。
6) The teacher told them since [A] light travels faster than [B] sound, lightning appeared [C] to go before [D] thunder.
7) As [A] a child, I was told that [B] the planet earth, which has [C] its own satellite, the moon, moved [D] round the sun.
四、祈使句必須用動詞原形，其否定結(jié)構(gòu)用“don’t+動詞原形”，如：
Go and fetch some water. / Don’t do that.
五、在反義疑問句中，如果主句用肯定句，那么，反問句用否定形式;如果主句用否定形式，那么，反問句就用肯定形式。而且前后在時態(tài)上要一致。但祈使疑問句用won’t you?進行反問。如：See a film tonight, won’t you?
注：① 祈使句后邊可用附加疑問句，以加強語氣。如果祈使句用肯定形式，附加疑問句用否定形式;如果祈使句用否定形式，附加句用肯定形式;如： Come here next Sunday, won’t you? / Don’t tell it to anyone, will you? ② 但如果祈使句的前一句有了表示強烈[ZZ(]肯定[ZZ)]的語言環(huán)境，即使祈使句用了肯定形式，其附加成分也可以用“will you”(表示肯定，如果是在口語中用降調(diào))。如：Give me the book, will you?
擴展：初中語法解析-一般將來時
一、一般將來時表示將要發(fā)生的動作或狀況。
1) But the weather experts [A] are now paying more attention to West Antarctic1, which may be affected2 [B] by only a few degrees of warming: in other words, by a warming on the scale that would [C] possibly take place in the next fifty years from the burning [D] of fuels.(92年閱讀理解題)
2) If traffic problems are not solved soon [A]， driving [B] in [C] cities becomes [D] impossible.
二、在表示時間和條件的狀語從句中，一般現(xiàn)在時代替一般將來時。這些時間副詞有when, as soon as等，表示條件的連詞有if, as long as等。
3 ) A desert area that has been [A] without water [B] for six years will still [C] bloom3 when rain will come [D] .
4) Come and see me whenever ___.(84年考題)
[A] you are convenient [B] you will be convenient
[C] it is convenient to you[D] it will be convenient to you
5) The task is extremely difficult. If no one ___able to do it, we will have to find somebody else.
[A] were
[B] was
[C] is
[D] would
注意：如果這些副詞或連詞引導(dǎo)的是名詞從句作賓語而不是狀語從句時，這些名詞從句的謂語動詞則用該用的時態(tài)：I don’t know when he will come.而且表示將來的助動詞will還可以用以條件從句中，譯為“愿意、肯”等。
三、一些表示方向及變化的瞬間動詞可用進行時或現(xiàn)在時表示將要發(fā)生的動作。
We leave (are leaving) for California the day after tomorrow.我們(計劃)后天動身去加利福尼亞州。
May I have your attention please. The plane for Wuhan is about to take off.請注意，飛往武漢的飛機就要起飛了。
四、另外，“be +to +動詞原形”也可表示打算做的事，還可表示責任、意向和可能性。
You are to follow the doctor’s advice.你應(yīng)遵從醫(yī)囑。
No shelter was to be seen.找不到避難處。
相關(guān)文章：
2.語態(tài)學習:語態(tài)的基本概念與被動語態(tài)
初中語法一般現(xiàn)在時
上一篇：漢英被動表達的差異
下一篇：many和much的用法
