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一般現(xiàn)在時(shí)的用法-在線瀏覽

2025-08-15 02:12本頁面
  

【正文】   4)表示客觀真理,客觀存在,自然現(xiàn)象?! y sister is always ready to help others . 我妹妹總是樂于助人。  3)表示主語具備的性格、特征和能力等?! ±纾篗y father is at is very busy. 我父親在工作,他很忙?!  usually leave home for school at 7 every morning. 每天早上我七點(diǎn)離開家。頻度副詞在句中通常放在行為動(dòng)詞之前,系動(dòng)詞、助動(dòng)詞之后。.. . . ..一般現(xiàn)在時(shí)的用法  1) 表示經(jīng)常的或習(xí)慣性的動(dòng)作,常與表示頻度的副詞連用。常用的頻度副詞有: always、often、 usually、seldom、never。  例如: He often goes swimming in ?! ?)表示現(xiàn)在的狀態(tài)?! he boy is twelve. 這男孩十二歲?! ±纾篈ll my family love football .我全家人都喜歡足球?! nn writes good English but does not speak well. 安英語寫得不錯(cuò),講的可不行?! ±纾篢he earth moves around the sun. 地球繞太陽轉(zhuǎn)動(dòng)。  5)表示按計(jì)劃或安排好的,或?qū)⒁l(fā)生的動(dòng)作,可用一般現(xiàn)在時(shí)表將來?! ±纾篢he train leaves at six tomorrow morning. 火車明天上午六點(diǎn)開?! ?)在復(fù)合句中,當(dāng)主句是一般將來時(shí),時(shí)間或條件狀語從句的謂語動(dòng)詞只能用一般現(xiàn)在時(shí)來表示將來要發(fā)生的動(dòng)作。ll tell him the news when he es back. 他回來時(shí),我將告訴他這個(gè)消息?! §柟叹毩?xí):  Lucy likes going skating with her friends. (改寫成否定句)  ________________________________________________________  Aunt Li’s son has ten toy bears. (對(duì)劃線部分提問)  ________________________________________________________  His watch costs 300 yuan. (變成一般疑問句并否定回答)  ________________________________________________________  I like being a nurse for the old. (變成一般疑問句)  ________________________________________________________  張叔叔每天乘坐地鐵上班?! _______________________________________________________  我爺爺常常晚飯后出去散步。如何教學(xué)這些語法,從而使學(xué)生更好、更有效地掌握它們,是經(jīng)常困擾教師的問題?! ∫弧摹啊比齻€(gè)方面把握動(dòng)詞時(shí)態(tài)  “”三個(gè)方面是學(xué)習(xí)一種時(shí)態(tài)所必須把握的,三者相互聯(lián)系,相互制約,共同表述一個(gè)完整的時(shí)態(tài)含義。對(duì)于概念的把握一定要全面、準(zhǔn)確,表述嚴(yán)密,如對(duì)于一般現(xiàn)在時(shí)的用法,不能只表述為“表示經(jīng)常性或習(xí)?  下面列舉兩種時(shí)態(tài)進(jìn)行說明。(1)表示現(xiàn)在的狀況,如Mr. Green has two children. (2)表示主語所具備的性格或能力,如Ann enjoys listening to the radio. Miss White speaks Chinese very well. (3)表示經(jīng)常性、習(xí)慣性或反復(fù)出現(xiàn)的動(dòng)作或狀態(tài),如I usually rest on Sundays. Mr. Brown always gets up early. LiLei goes to see Uncle Wang once a month. (4)表示客觀事實(shí)和普遍真理,如It never snows in Australia in December. Light travels faster than sound. ?。阂话悻F(xiàn)在時(shí)的結(jié)構(gòu)在一般情況下用動(dòng)詞原形,當(dāng)主語是第三人稱單數(shù)時(shí),謂語動(dòng)詞也要相應(yīng)變成單數(shù)形式,其否定式、疑問式要加助動(dòng)詞do或does。一、 一般現(xiàn)在時(shí) :經(jīng)常、反復(fù)發(fā)生的動(dòng)作或行為及現(xiàn)在的某種狀況。 此時(shí)態(tài)的謂語動(dòng)詞若為行為動(dòng)詞,則在其前加don39。t,同時(shí)還原行為動(dòng)詞。 :. It seldom snows here. He is always ready to help others. Action speaks louder than words..[編輯本段]二、 一般過去時(shí) :過去某個(gè)時(shí)間里發(fā)生的動(dòng)作或狀態(tài);過去習(xí)慣性、經(jīng)常性的動(dòng)作、行為。在行為動(dòng)詞前加didn39。 :was或were放于句首;用助動(dòng)詞do的過去式did 提問,同時(shí)還原行為動(dòng)詞。t know you were so busy.[編輯本段]三、 現(xiàn)在進(jìn)行時(shí) :表示現(xiàn)階段或說話時(shí)正在進(jìn)行的動(dòng)作及行為。 : How are you feeling today? He is doing well in his lessons.[編輯本段]四、 過去進(jìn)行時(shí) :表示過去某段時(shí)間或某一時(shí)刻正在發(fā)生或進(jìn)行的行為或動(dòng)作。 主語+was/were +doing +其他 :主語+was/were + not +doing+其他 :把was或were放于句首。 :yet,already,just,never,ever,so far,by now,since+時(shí)間點(diǎn),for+時(shí)間段,recently, lately, in the past few years, etc. :主語+have/has +(過去分詞)+其他 :主語+have/has + not +(過去分詞)+其他 :have或has。ve written an article. The countryside has changed a lot in the past few years.[編輯本段]六、 過去完成時(shí) :以過去某個(gè)時(shí)間為標(biāo)準(zhǔn),在此以前發(fā)生的動(dòng)作或行為,或在過去某動(dòng)作之前完成的行為,即“過去的過去”。 :As soon as we got to the station, the train had left. By the end of last month. We had reviewed four books 基本結(jié)構(gòu):主語+had+(過去分詞)+其他 ①肯定句:主語+ had+(過去分詞)+其他 ②否定句:主語+ had+ not+(過去分詞)+其他 ③一般疑問句:Had+主語+(過去分詞)+其他 ④特殊疑問句:特殊疑問詞+一般疑問句[編輯本段]七、 一般將來時(shí) :表示將要發(fā)生的動(dòng)作或存在的狀態(tài)及打算、計(jì)劃或準(zhǔn)備做某事。 :They are going to have a petition with us in studies. It is going to rain.[編輯本段]八、 過去將來時(shí) :立足于過去某一時(shí)刻,從過去看將來,常用于賓語從句中。 主語+would/should + not + do. :was或were放于句首;would/should 提到句首。 by the end of+時(shí)間短語(將來)。這一動(dòng)作可能剛剛開始,也可能仍在繼續(xù),并可能延續(xù)到將來。 :I have been sitting here for an hour. The children have been watching TV since six o39。但是,可用別的表達(dá)方式:①瞬間動(dòng)詞用于“一段時(shí)間 + ago”的一般過去時(shí)的句型中;②瞬間動(dòng)詞可改成與之相對(duì)應(yīng)的延續(xù)性動(dòng)詞及短語,與一段時(shí)間連用;③瞬間動(dòng)詞用于“It is + 一段時(shí)間 + since + 一般過去時(shí)”的句型中,表示“自從……以來有……時(shí)間”的意思,主句一般用it is來代替It has been。請(qǐng)看: A. He joined the League two years ago. B. He has been in the League for two years. C. It is two years since he joined the League. D. Two years has passed since he joined the League.[編輯本段]十二、 一般現(xiàn)在時(shí)與現(xiàn)在進(jìn)行時(shí)的轉(zhuǎn)換 在一般現(xiàn)在時(shí)中,at加上名詞表示“處于某種狀態(tài)”,如at work(在工作), at school(上學(xué)、上課)等。請(qǐng)看: Peter is at work, but Mike is at play.
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