初中英语语法动词时态ppt课件

,超,速,英,语,语,法,动词时态,1. 一般现在时的基本用法：,1) 经常性或习惯性的动作，常与频率副词every morning(afternoon, Sunday), sometimes, at, on Sunday, often. usually,的时间状语连用。,I wake up at six Oclock every morning. My friends often go to the park on Sundays.,2) 用于表示客观真理，客观存在，科学事实。,The earth moves around the sun. Tomorrow is Tuesday.,动词时态,动词时态,超,速,英,语,语,法,3) 用于格言或警句中。,Where there is a will, there is a way.,4) 用于表示现在时刻的状态、能力、性格、个性。,She is a good girl and always help others.,.5）在时间状语从句和条件状语从句中，常用一般 现在时代替将来时。,We will go shopping if it doesnt rain tomorrow.,超,速,英,语,语,法,.6）表示预先计划或安排好铁定要发生的行为。,The plane takes off at 6:00.,超,速,英,语,语,法,一般现在时第三人称单he,she,it 的构成规则,1. 一般的动词词尾+S。,2. 以sh/ch/s/x 结尾的词+es.,3. 以辅音字母Y结尾的把Y变成 i，+es。,helps, makes, gets, swims, knows, plays,dresses, washes, catches,fly-flies, study- studies,超,速,英,语,语,法,2. 现在进行时,结构: be+V-ing(现在分词),动词的现在分词的变化规则,1 一般的动词，直接在动词后加ing,work - working sleep - sleeping study - studying,2 以不发音字母e结尾的动词，要先去e加ing,take - taking make - making dance - dancing,超,速,英,语,语,法,3 重读闭音节的动词，要双写最后一个字母，再加ing,swimswimming get getting stopstopping,4 以ie结尾的动词，把ie变为y再加ing,lie - lying tie tying die - dying,现在进行时的基本用法：,a. 表示现在( 指说话人说话时) 正在发生的事情。,I am waiting for you.,超,速,英,语,语,法,3. 一般将来时,表示将来某一时刻的动作或状态，或将来某一段时间 内经常的动作或状态。常常和表示将来的时间状语连用。,如：tomorrow， next week；in the future等。,1) shall用于第一人称，常被will 所代替。,Will you still love me tomorrow?,超,速,英,语,语,法,2) be going to +V原，表示将来,a. 主语的意图，即将做某事。,What are you going to do tomorrow?,b. 计划，安排要发生的事。,The play is going to be produced next month。,c. 有迹象要发生的事,Look at the dark clouds, there is going to be a storm.,超,速,英,语,语,法,3) be +不定式表将来，按计划或正式安排将发生的事。,We are to discuss the report next Saturday.,4) be about to +V原，意为马上做某事。,He is about to leave for Beijing.,注意：be about to 不能与tomorrow, next week 等表示明确将来时的时间状语连用。,超,速,英,语,语,法,区别: be to 表示客观安排或受人指示而做某事。 be going to 表示主观的打算或计划。,I am to play football tomorrow afternoon. (客观安排) Im going to play football tomorrow afternoon. (主观安排),超,速,英,语,语,法,4. 一般过去时的基本用法：,1) 在确定的过去时间里所发生的动作或存在的状态。 时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。,Where did you go last night?,2）表示在过去一段时间内，经常性或习惯性的动作。,When I was