现在完成时和一般现在时的区别讲解
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A good book is a good friend.
Unit8 Have you read Treasure Island yet?
Period 2 :Section A 4a-4c
Have you read Robinson Crusoe yet?
Yes, I have.\ No, I haven't.
I have =I've
she has = she's
have not = haven't has not= hasn't
句型转换 1. I have finished my homework. ①I ______ ______ my homework. ( 改为否定 句) ②—______ you ______ your homework? ( 改 为一般疑问句并作肯定回答) —Yes，______ ______.
② I have never been to Beijing. ③ The plane has not come yet. ④She has already finished the work. ⑤ I've just finished my homework.
sleep → slept → slept
7. 结尾的字母d变t。 如： lend → lent → lent; build → built → built;
send → sent → sent 8. 变为以-ought 或-aught 结尾。 如： buy → bought → bought; bring → brought → brought;
catch → caught → caught; teach → taught → taught
2、表过去发生的某一动作对现在造成的影响或结果。
例如： I have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的 结果是“衣服干净了”） I have just had my breakfast. (对现在的影响：不饿 ) --Have you read Little Women yet? --No, I haven't.( 我对该书不了解）
Explanation
Already 和 yet 2.Already 若用在疑问句中，常表示吃惊意外的语 气。此时Already 常放在句末或句中。
Have you finished your homework ___a_lr_e_a_d_y?
你的作业完成了吗？（我以为你没有做完，表示出 乎意料。）
A: What books have you already read ?
B: I' ve already read Dream of the Red Chamber and Journey to the West.
A: What do you think of them?
B: Well, I think Dream of the Red Chamber was boring, but Journey to the West was a bit exciting.
4c Complete the chart with information
about you and a friend.
You
Your
Comments
friend
Books I have already read
Movies I have already seen
Songs Iห้องสมุดไป่ตู้have already heard
答案：1. ①haven't finished ②Have；finished；I have
2. His dream has come true. ( 改为一般疑问 句并作否定回答) --- ______ his dream ______ true? --- No，______ ______ .
答案：2. Has ；come；it hasn't
I've already read the book
.
I think it's
.
My friend called it's
has read a book . He\She thinks
.
Grammar
现在完成时 (一) 1、构成: 助动词have （has ）+过去分词 (have/has done sth ) 其否定句在 Have/has 后加not . 一般疑问句把 have/has 提到主语前 .
A: What movies have you already seen ?
B: I' ve already seen Shao Lin Temple . A: What do you think of it?
B: Well, I think it's wonderful.
A: What songs have you already heard? B: I've already heard Super Star . A: What do you think of it? B: Well, I think it's beautiful.
规则变化 ：过去式和过去分词的变化相同 1. 一般在动词词尾直接加 ed。 2. 以不发音的 e结尾的动词后面加 d。 3. 以“辅音字母 + y”结尾的动词，变 y为i，再
加-ed 。 4. 词尾只有一个辅音字母的重读闭音节动词，
要双写辅音字母，再加 -ed。
不规则变化：
5. 以不变应万变。 如：let → let → let; put → put → put; read → read → read 6. 若中间有双写e，则去掉一个e，单词末尾再加t。 如：feel → felt → felt; keep → kept → kept;
3、通常与表示包括现在在内的时间副词 just （刚 刚）, already（已经）, before, yet （一般疑问：已 经；否定句：还） never, ever 等状语连用。
①--- Do you know there is a panda in YiChang? ---No. I have never heard of that before.
Unit8 Have you read Treasure Island yet?
Period 2 :Section A 4a-4c
Have you read Robinson Crusoe yet?
Yes, I have.\ No, I haven't.
I have =I've
she has = she's
have not = haven't has not= hasn't
句型转换 1. I have finished my homework. ①I ______ ______ my homework. ( 改为否定 句) ②—______ you ______ your homework? ( 改 为一般疑问句并作肯定回答) —Yes，______ ______.
② I have never been to Beijing. ③ The plane has not come yet. ④She has already finished the work. ⑤ I've just finished my homework.
sleep → slept → slept
7. 结尾的字母d变t。 如： lend → lent → lent; build → built → built;
send → sent → sent 8. 变为以-ought 或-aught 结尾。 如： buy → bought → bought; bring → brought → brought;
catch → caught → caught; teach → taught → taught
2、表过去发生的某一动作对现在造成的影响或结果。
例如： I have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的 结果是“衣服干净了”） I have just had my breakfast. (对现在的影响：不饿 ) --Have you read Little Women yet? --No, I haven't.( 我对该书不了解）
Explanation
Already 和 yet 2.Already 若用在疑问句中，常表示吃惊意外的语 气。此时Already 常放在句末或句中。
Have you finished your homework ___a_lr_e_a_d_y?
你的作业完成了吗？（我以为你没有做完，表示出 乎意料。）
A: What books have you already read ?
B: I' ve already read Dream of the Red Chamber and Journey to the West.
A: What do you think of them?
B: Well, I think Dream of the Red Chamber was boring, but Journey to the West was a bit exciting.
4c Complete the chart with information
about you and a friend.
You
Your
Comments
friend
Books I have already read
Movies I have already seen
Songs Iห้องสมุดไป่ตู้have already heard
答案：1. ①haven't finished ②Have；finished；I have
2. His dream has come true. ( 改为一般疑问 句并作否定回答) --- ______ his dream ______ true? --- No，______ ______ .
答案：2. Has ；come；it hasn't
I've already read the book
.
I think it's
.
My friend called it's
has read a book . He\She thinks
.
Grammar
现在完成时 (一) 1、构成: 助动词have （has ）+过去分词 (have/has done sth ) 其否定句在 Have/has 后加not . 一般疑问句把 have/has 提到主语前 .
A: What movies have you already seen ?
B: I' ve already seen Shao Lin Temple . A: What do you think of it?
B: Well, I think it's wonderful.
A: What songs have you already heard? B: I've already heard Super Star . A: What do you think of it? B: Well, I think it's beautiful.
规则变化 ：过去式和过去分词的变化相同 1. 一般在动词词尾直接加 ed。 2. 以不发音的 e结尾的动词后面加 d。 3. 以“辅音字母 + y”结尾的动词，变 y为i，再
加-ed 。 4. 词尾只有一个辅音字母的重读闭音节动词，
要双写辅音字母，再加 -ed。
不规则变化：
5. 以不变应万变。 如：let → let → let; put → put → put; read → read → read 6. 若中间有双写e，则去掉一个e，单词末尾再加t。 如：feel → felt → felt; keep → kept → kept;
3、通常与表示包括现在在内的时间副词 just （刚 刚）, already（已经）, before, yet （一般疑问：已 经；否定句：还） never, ever 等状语连用。
①--- Do you know there is a panda in YiChang? ---No. I have never heard of that before.