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yesterday, while we were having the meeting等時間狀語連用。3 基本結(jié)構(gòu):be動詞的過去式(was / were)+動詞的現(xiàn)在分詞(Ving)4 否定形式:was / were + not + Ving5 一般疑問句:把be動詞放于句首6 例句:She was holding a party at her place last Saturday.He was not telling the truth. Were you working at this time yesterday?④ 過去完成時:1 概念:表示表示在過去某一時間或動作之前已經(jīng)發(fā)生或完成了的動作。2 常被after,before,when,until 等副詞修飾。3 基本結(jié)構(gòu):助動詞 had + 動詞的過去分詞 (had通常用于任何人稱)4 否定形式:had + not + 動詞的過去分詞5 一般疑問句:把had 放于句首6 例句:I went to bed after I had finished my homework last night.They had not met each other until yesterday. Had she left when we arrived?3. 規(guī)則動詞過去式和過去分詞:① 規(guī)則動詞過去式和過去分詞+ed的變化: ⑴ 直接在詞尾加ed。如: want—wanted, work—worked, need—needed, clean—cleaned⑵ 以不發(fā)音的e結(jié)尾的在詞尾加d。如:like—liked, live—lived, use—used, move—moved ⑶ 以一個元音字母加一個輔音字母結(jié)尾的重讀閉音節(jié)動詞,先雙寫結(jié)尾的輔音字母,再加ed。如:stop—stopped, trip—tripped⑷ 以輔音字母加y結(jié)尾的動詞,先把y變成i,再加ed。如:study—studied, carry—carried, hurry—hurried, marry—married② 規(guī)則動詞的過去式和過去分詞ed的發(fā)音規(guī)則:⑴ 在清輔音后讀作[t]。如:asked, helped, watched, stopped⑵ 在濁輔音和元音后讀作[d]。如:enjoyed, studied, moved, called⑶ 在t / d后讀作[id]。如:wanted, needed3. 不規(guī)則動詞的過去式和過去分詞原形過去式過去分詞原形過去式過去分詞am / iswasbeenbuyboughtboughtarewerebeenfindfoundfounddodiddonegetgotgotsaysaidsaidhavehadhadgowentgonehearheardheardunderstandunderstoodunderstoodleaveleftleftdrinkdrankdrunkloselostlostwearworewornmakemademadebringbroughtbroughtmeetmetmetsellsoldsoldsendsentsentcostcostcostsweepsweptsweptflyflewflowntelltoldtoldcatchcaughtcaughtcutcutcutfallfellfallenputputputhurthurthurtreadreadreadwritewrotewrittenshutshutshutspellspeltspeltecameeforgetforgotforgottengivegavegivengrowgrewgrownswimswamswummeanmeantmeanttaketooktakenovertakeovertookovertakeneatateeatenwinwonwonriseroserisenthrowthrewthrownseesawseendreamdreamtdreamtspeakspokespoken4. 形容詞的比較級和最高級: ?、?英語中大多數(shù)形容詞是可以分級的,一般有三個等級:原級,比較級和最高級。 ⑴ 原級:形容詞的本來形式就是形容詞的原級。用原級進(jìn)行比較時可以使用下面兩種結(jié)構(gòu): ?、?表示比較的雙方相等,用”as…as”結(jié)構(gòu),表示“前者像后者一樣”,如: John is as tall as his brother. ?、?表示比較的雙方不相等,用”not as…as”結(jié)構(gòu),表示“前者不如后者”,如: John is not as tall as his brother. ?、?比較級:當(dāng)把一個人或物同另外一個人或物比較時,就需要用到形容詞比較級。其結(jié)構(gòu)是:A + be + 形容詞比較級 + than + B. 如:Jackie is taller than Alex, but Alex is heavier than Jackie. ⑶ 最高級:三者或者三者以上的人或物進(jìn)行比較時,需要使用形容詞的最高級。其結(jié)構(gòu)是:A + be + the 形容詞最高級 + of / in + 比較范圍. 如:Jackie is the tallest in our class. Jackie is the tallest of all the students. ② 形容詞不同級別的變化: ⑴ 規(guī)則形容詞的變化: ⅰ 一般情況,直接加–er或–est。如:tall224。 taller224。 tallest,young224。 younger224。 youngest