小学英语语法专题十：（时态）四大时态总复习（30P） 课件

小升初英语复习之时态How many tenses do you know?• The simple present tense. 一般现在时• The present continuous tense 现在进行时• The simple past tense 一般过去时• The simple future tense 一般将来时the Simple Present Tense 一般现在时1. 表示经常的或习惯性的动作，常与表示频度的时间状语连用。 Peter usually goes to school by bike.2. 表示主语具备的性格、能力和特征。 Miss Zheng teaches English.3. 表示现在的状态。 It is cold.4. 表示客观事实和普遍真理。 The earth moves around the sun. 结构 :标志语：主语 + 动词（原形 / 第三人称单数）often, always, usually, sometimes, once a week等表示频度的副词和时间状语Simple present tense第三人称单数The present continuous tense 现在进行时The present continuous tense 现在进行时基本用法1. 表示现在正在进行的动作和发生的事Eg. ---What are you doing? ---I am reading a book.2. 有时表示现阶段正发生的事 , 但此刻动作不一定正在进行Eg. He is teaching at the school. We are learning Unit5 these days.3. 现在进行时的句子中常有 now, 或在句首常出现Look! Listen! 等提示词Eg. Listen! Danny is singing in the room. He is doing his homework now.结构 : be+doing ( be 要根据主语作人称和数的变化 )句型转换1. 肯定句转换成否定句 , 要在 be 后加 not 构成eg. We are reading English now. We are not reading English now.2. 陈述句转换成一般疑问句 , 把 be 动词提到句首eg. The student is drinking.  Is the student drinking?3. 陈述句转换成特殊疑问句 , 由“疑问词 + 一般疑问句”构成eg. He is working.  What is he doing?walkingridingdrawingjumpingdivingdancingclimbingplayingWhat is he/she doing? He’s/She’s …v.+ingsleepstandsweepwashsleeping standing sweeping washing clean jump walk docleaningjumpingwalkingdoingrunning swimswimmingrunsitsittingdancingclosing riding having双写 +ing 以动词闭音节结尾 , 且末尾只有一个辅音字母的 , 应双写此字母 , 再加 – ing danceclosee+ing 动词末尾有不...