初中英語語法動(dòng)詞時(shí)態(tài)ppt課件

,超,速,英,語,語,法,動(dòng)詞時(shí)態(tài),1. 一般現(xiàn)在時(shí)的基本用法：,1) 經(jīng)常性或習(xí)慣性的動(dòng)作，常與頻率副詞every morning(afternoon, Sunday), sometimes, at, on Sunday, often. usually,的時(shí)間狀語連用。,I wake up at six Oclock every morning. My friends often go to the park on Sundays.,2) 用于表示客觀真理，客觀存在，科學(xué)事實(shí)。,The earth moves around the sun. Tomorrow is Tuesday.,動(dòng)詞時(shí)態(tài),動(dòng)詞時(shí)態(tài),超,速,英,語,語,法,3) 用于格言或警句中。,Where there is a will, there is a way.,4) 用于表示現(xiàn)在時(shí)刻的狀態(tài)、能力、性格、個(gè)性。,She is a good girl and always help others.,.5）在時(shí)間狀語從句和條件狀語從句中，常用一般 現(xiàn)在時(shí)代替將來時(shí)。,We will go shopping if it doesnt rain tomorrow.,超,速,英,語,語,法,.6）表示預(yù)先計(jì)劃或安排好鐵定要發(fā)生的行為。,The plane takes off at 6:00.,超,速,英,語,語,法,一般現(xiàn)在時(shí)第三人稱單he,she,it 的構(gòu)成規(guī)則,1. 一般的動(dòng)詞詞尾+S。,2. 以sh/ch/s/x 結(jié)尾的詞+es.,3. 以輔音字母Y結(jié)尾的把Y變成 i，+es。,helps, makes, gets, swims, knows, plays,dresses, washes, catches,fly-flies, study- studies,超,速,英,語,語,法,2. 現(xiàn)在進(jìn)行時(shí),結(jié)構(gòu): be+V-ing(現(xiàn)在分詞),動(dòng)詞的現(xiàn)在分詞的變化規(guī)則,1 一般的動(dòng)詞，直接在動(dòng)詞后加ing,work - working sleep - sleeping study - studying,2 以不發(fā)音字母e結(jié)尾的動(dòng)詞，要先去e加ing,take - taking make - making dance - dancing,超,速,英,語,語,法,3 重讀閉音節(jié)的動(dòng)詞，要雙寫最后一個(gè)字母，再加ing,swimswimming get getting stopstopping,4 以ie結(jié)尾的動(dòng)詞，把ie變?yōu)閥再加ing,lie - lying tie tying die - dying,現(xiàn)在進(jìn)行時(shí)的基本用法：,a. 表示現(xiàn)在( 指說話人說話時(shí)) 正在發(fā)生的事情。,I am waiting for you.,超,速,英,語,語,法,3. 一般將來時(shí),表示將來某一時(shí)刻的動(dòng)作或狀態(tài)，或?qū)砟骋欢螘r(shí)間 內(nèi)經(jīng)常的動(dòng)作或狀態(tài)。常常和表示將來的時(shí)間狀語連用。,如：tomorrow， next week；in the future等。,1) shall用于第一人稱，常被will 所代替。,Will you still love me tomorrow?,超,速,英,語,語,法,2) be going to +V原，表示將來,a. 主語的意圖，即將做某事。,What are you going to do tomorrow?,b. 計(jì)劃，安排要發(fā)生的事。,The play is going to be produced next month。,c. 有跡象要發(fā)生的事,Look at the dark clouds, there is going to be a storm.,超,速,英,語,語,法,3) be +不定式表將來，按計(jì)劃或正式安排將發(fā)生的事。,We are to discuss the report next Saturday.,4) be about to +V原，意為馬上做某事。,He is about to leave for Beijing.,注意：be about to 不能與tomorrow, next week 等表示明確將來時(shí)的時(shí)間狀語連用。,超,速,英,語,語,法,區(qū)別: be to 表示客觀安排或受人指示而做某事。 be going to 表示主觀的打算或計(jì)劃。,I am to play football tomorrow afternoon. (客觀安排) Im going to play football tomorrow afternoon. (主觀安排),超,速,英,語,語,法,4. 一般過去時(shí)的基本用法：,1) 在確定的過去時(shí)間里所發(fā)生的動(dòng)作或存在的狀態(tài)。 時(shí)間狀語有：yesterday, last week, an hour ago, the other day, in 1982等。,Where did you go last night?,2）表示在過去一段時(shí)間內(nèi)，經(jīng)常性或習(xí)慣性的動(dòng)作。,When I was