小升初英语复习之时态(共30张PPT)知识讲解

get—got
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
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.
4.表示客观事实和普遍真理。 The earth moves around the sun.
Simple present tense
结构: 主语+ 动词（原形/第三人称单数）
标志语：
often, always, usually, sometimes, once a week
等表示频度的副词和时间状语
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正.有在时进表行示现阶段正发生的事,但此刻动作不一定
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.
walking jumping playing drawing climbing dancing riding diving
v.+ing
sleep stand sweep wash
sleeping clean standing jump sweeping walk washing do
cleaning jumping walking doing
口诀教你学doing
进行时很好记,be加动词-ing; 直加双写去哑e,分词构成须仔细; 别说 be 无词义,主语和它最亲密; 变疑问 be 提前,否定 not 再后添; 何时要用进行时 look,listen,now标记.
The simple past tense
一般过去时
The simple past tense
e+ing 动词末尾有不发音的e ,则去e加 -ing
dance close
dancing ride riding closing have 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
run running swim swimming sit sitting
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?
What is he/she doing? He’s/She’s …
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.
一般过去时(simple past tense)表示 • 过去某个时间里发生的动作或状态； • 过去习惯性、经常性的动作、行为；
• 过去主语所具备的能力和性格。
基本结构: 主语+动词过去式+其他
The simple past tense
时间状语 ago---two hours ago, three days ago yesterday, the day before yesterday last week/year/night/month… just now, long ago, once upon a time.
The simple past tense
否定形式 ① was/were+not; ② 在行为动词前加didn't，同时还原行为动词 一般疑问句 Did+主语+do+其他+？
She often came to help us last year. I was not a teacher five years ago. I didn't know you were so busy just now. Did you go to school yesterday?
动词变化规则
规则变化：
1.直：直接加ed: work- worked , 2.去：以e结尾的，去e加ed: live - lived 3 双：以重读闭音节结尾的,双写加ed： stop
stopped
4 改：以辅音字母+y结尾的,变y为i加ed: studystudied
动词变化规则 --不规则变化：
have/has -- had
meet—met
eat--ate
catch—caught
see—saw am/is—was are—were go—went do—did take—took run—ran sit---sat feel--felt
buy—பைடு நூலகம்ought think—thought say—said give—gave put—put write—wrote swim—swam keep- kept