英語(yǔ)必考時(shí)態(tài)結(jié)構(gòu)之現(xiàn)在完成時(shí)
英語(yǔ)必考時(shí)態(tài)結(jié)構(gòu)之現(xiàn)在完成時(shí)
現(xiàn)在完成時(shí)是過去的動(dòng)作或狀態(tài)持續(xù)到現(xiàn)在并且已經(jīng)完成,對(duì)現(xiàn)在造成的影響,可能持續(xù)發(fā)生下去。在英語(yǔ)時(shí)態(tài)中,“時(shí)“指動(dòng)作發(fā)生的時(shí)間,”態(tài)“指動(dòng)作的樣子和狀態(tài)。下面是小編為您收集整理的英語(yǔ)必考時(shí)態(tài)結(jié)構(gòu)之現(xiàn)在完成時(shí),供大家參考!
英語(yǔ)必考時(shí)態(tài)結(jié)構(gòu)之現(xiàn)在完成時(shí)
1. 概念:過去發(fā)生或已經(jīng)完成的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果,或從過去已經(jīng)開始,持續(xù)到現(xiàn)在并且有可能繼續(xù)下去的動(dòng)作或狀態(tài)。
2. 時(shí)間狀語(yǔ):recently, lately, since, for, in the past few years, etc.
3. 基本結(jié)構(gòu):have/has + done
否定形式:have/has + not +done.
一般疑問句:have或has。
4. since的三種用法
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)。
例如:I have been here since 1989. 1989起,我一直在這兒。
2) since +一段時(shí)間+ ago。
例如:I have been here since five months ago. 我在這兒,已經(jīng)有五個(gè)月了。
3) since +從句(一般過去時(shí))。
例如:Great changes have taken place since you left. 你走后,變化可大了。
比較since和for
since 用來說明動(dòng)作起始時(shí)間,for用來說明動(dòng)作延續(xù)時(shí)間長(zhǎng)度。
例如:I have lived here for more than twenty years.我住在這兒二十多年了。
注意:并非有for 作為時(shí)間狀語(yǔ)的句子都用現(xiàn)在完成時(shí)。
I worked here for more than twenty years. (我現(xiàn)在已不在這里工作。)
初中英語(yǔ)寫作之早戀
新一輪中考復(fù)習(xí)備考周期正式開始,小編為各位初三考生整理了中考五大必考學(xué)科的知識(shí)點(diǎn),主要是對(duì)初中三年各學(xué)科知識(shí)點(diǎn)的梳理和細(xì)化,幫助各位考生理清知識(shí)脈絡(luò),熟悉答題思路,希望各位考生可以在考試中取得優(yōu)異成績(jī)!下面是《初中英語(yǔ)寫作之早戀》,僅供參考!
Nowadays,more and more students fall in love in middle schools that worries teachers andparents. As for me, I don’t agree to puppy love. No matter admit it or not,puppy love will certainly have negative influence on study, because it takesmuch time and energy. But the most important is that middle school students arenot mature enough to operate a relationship. The favorable impression to othersmay be the momentary impulse that will not last very long time. The middleschool students are so young and unthoughtful to take the responsibilities of love.What should they do is put their study in priority and wait with patience, becausetrue love is worth of waiting.
現(xiàn)在,越來越多的中學(xué)生談起了戀愛,這讓老師和家長(zhǎng)十分憂心。我個(gè)人并不贊成早戀。不管承認(rèn)與否,早戀肯定會(huì)對(duì)學(xué)習(xí)產(chǎn)生消極的影響,因?yàn)檫@會(huì)耗費(fèi)大量的時(shí)間和精力。但是更重要的是,中學(xué)生還不夠成熟,不足以經(jīng)營(yíng)一段感情。對(duì)他人的好感很可能是一時(shí)的沖動(dòng),并不會(huì)持續(xù)很長(zhǎng)時(shí)間。他們還太年輕,考慮不周全,對(duì)于愛情還缺乏應(yīng)有的責(zé)任感。他們應(yīng)該做的就是把學(xué)習(xí)放在首位,并且耐心等待愛情的到來,因?yàn)檎鎼?,值得等待?/p>