8B Unit 1 Past and present Grammar -by Ren Xiaojun

Ask and answer questions

Present perfect tense ●Definition : ● Structure: have / has+done (past participle) have / has+ not + done

● Form of verbs(p.p): 1)regular: v+ed 2) irregular: feel- be- fall- eat- buy- go- come- see- teach- begin- write- fly- felt -feltwas/ were -been fell-fallenate-eaten bought-bought went-gone came-come saw-seen taught-taughtbegan-begun wrote-writtenflew-flown

hold- lend - find- keep- hurt- know- pay- meet- throw- take- wear- win- hide- speak- held-held lent-lent found-foundkept-kept hurt-hurtknew-known paid-paidmet-met threw-throwntook-taken wore-worn won-won hid-hiddenspoke-spoken

● the usage of Present perfect tense

★ 1. 过去发生的动作对现在造成的影响或结 果，强调现在的情况。通常与现在的时间 状语或相当于时间状语的副词连用。 just 刚刚 ( 肯定句，疑问句, 位于句中） ever 曾经（疑问句, 肯定句，位于句中） never 从不（否定句，常位于句中） already 已经 （肯定句） yet 还 （否定句，位于句末） before 以前（句末）

just, ever, never, already, yet, before 1.--Have you ____come back from Japan? --Yes Have you seen this kind of flower? ---No, ________. 3.You have already finished your work, but I haven’t _______. 4. My father has ________ come back. You can go to ask him. 5. We have known each other ______. just ever never yet already/just before

for+ 一段时间 since so far in the past+ 一段时间， over the years how long… ★ 2. 某一个动作从过去一直延续到现在， 常于表示一段时间的时间状语连用 1998 sentence(did) 4 months ago = up to now

1.So far, I _________(not get) a letter from him. 2. In the past few years, we _______(build) a lot of buildings. 3. She ______(learn) about 2000 English words since she came here. 4. The children _________(plant) thousands of trees since haven’t got have built has learnt have planted

5. The Greens _________(live) here since 6 years ago. 6.Mr Wu _________(teach) us English for at least 2 years. 7. How long ___ Tom ______(write) the letter? 8. Over the years, great changes ______ (take ) place in China. have lived has taught has written have taken

1. 这本书我已经买了五年了。 I have had this book for five years. I have had this book since five years ago. It is five years since I bought this book. Five years has passed since I bought this book. I bought this book five years ago.

2. 迄今为止，他父母结婚已经有 18 年了。 1) So far,his parents__________for 18 years. 2) So far, his parents __________since 18 years ago. 3) It is 18 years since his parents _____. 4) Eighteen years has passed since his father ______ his mother. 5) His father ____________ his mother for 18 years. have been married got married married has been married to

★瞬间 - 延续 leave– be away borrow-keep join– be in// be a member of die– be dead begin/ start- be on stop– be over get to know—know come/ go/ arrive—be in/ at come out –be out wake- be awake

( )1.---Where is your father? ---He ________ the post office. A.has been to B.has been in C.has gone to ( )2.How many times have you ___ there? A.been to B. been C. gone to ( )3.How much I miss my father, he ____ Beijing for a long time. A.has gone to B.has been to C.has been in C B C

隐含条件 1.This is the first time that I ________ (visit) Suzhou. 2. I won’t go to the concert because I ________ (lost) my ticket What do you think of the talk? ---I think it is the least interesting one that I _________ (hear). have visited have lost have heard

( )1.How much I miss my grandfather! He has died and he ____ since a month ago. A.has died B. has been dead C.died D. has dead ( )2.--Has Tom waken? --Yes. He has just ___for a while.He ___just now. A. waken, has waken B. waken, woke C. been awake, has waken D. been awake, woke ( ) 3. He’s never late,_______ he? A. has B. is C. hasn’t D.isn’t ( )4.I haven’t heard from him for a long time.What ________ to him. A.will happen B.has been happened C.has happened D. is happened B D B C

Simple past tense ( 一般过去时 ) ● Definition : ● Structure:

1.He ______ to draw horses already. He ____ it last year.(learn) 2.I _______(have) this bike since the beginning of this month. 3.Tom can’t get into the room because he ____(lose) the key to the door. 4.How many times ____you_____(phone) me these days?_____ you ______(phone) me this morning? has learnt learnt have had has lost have phoned Didphone

5. He __________ (not see) the film yet. So he ______(see) it this evening. 6. I don’t know this woman. I ____________ (meet, never) her I hear that your father ________(be) to Japan once. --- Yes. He _______(go) there last month Haven’t you ______ your medicine yet? ---Yes, I _______ a moment ago. (take) 9.How long _____you _____(stay) in Beijing last year? hasn’t seen will see have never met has been went taken took didstay