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2021学年Unit 1 The Changing WorldTopic 3 The world has changed for the better.教学ppt课件
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这是一份2021学年Unit 1 The Changing WorldTopic 3 The world has changed for the better.教学ppt课件，文件包含125Unit4Topic3SectionC课件pptx、p101-1amp3、p101-1amp4、电脑发展史mp4等4份课件配套教学资源，其中PPT共32页， 欢迎下载使用。
1)招待，娱乐 n. entertainment2)怀疑，疑惑 n.& v. dubt3)极小的，微小的 adj. tiny4)在……内，在……里 prep.& adv. inside5)通常，在正常情况下 adv. nrmally6)脑，智力，脑力 n. brain7)取消，撤销 v. cancel8)工作场 所 n. wrkplace9)连接， 把…联系起来 v. cnnect10)除……之外（还） prep.& adv. besides11)正确地，恰当地 adv. prperly12)无疑地 n dubt 13)例如 fr instance
Let’s watch a vide:
What are the cmputers used fr?
Cmputers were invented in the USA in the 1950s, nw they have becme very imprtant in many areas f wrk and leisure.
Dctrs can find diseases easily with the help f cmputers.
Fr example, tiny cmputers which are inside patients' bdies can keep their hearts beating nrmally.
In space, cmputers have been used t cntrl the speed and directin f a spaceship.
Peple can d shpping and d business at hme by using cmputers.
Task 1. Tick the fields we use the cmputer in.
educatin business industry cmmunicatin daily life medical care entertainment sprts
Read the passage and give it a title.————————————
The Imprtance f Cmputer
Fast reading
Underline the tpic sentence fr each paragraph.
Since cmputer were invented in the USA in the 1950s, they have becme very imprtant in many areas f wrk and leisure .
Since the Internet came int being, peple’s lives at hme have been changed ,t.
Cmputers have imprved ur lives, but they have brught prblems, t.
TIP：Tpic sentence usually lies at the beginning f a paragraph.
Task 4. Read Paragraph 1 and fill in the blanks.
cntrl the speed and directin
find diseases easily and slve ther prblems
d dangerus wrk
used t place and cancel rders
Careful reading
Task 5. Read Paragraph 2 and answer the questins.
1 Have peple’s lives at hme been changed since the Internet came int being? 2 What d peple use their persnal cmputers fr? 3 The Internet is making the wrld smaller, isn’t it?
Yes, they have.
Peple can use their cmputers t play games, watch mvies, d shpping, d business, send e-mails and chat.
Yes, it is.
Task 6. Read Paragraph 3 and fill in theblanks.
Hw shuld we use cmputers prperly?1. We shuldn’t ________ (从事) cmputers t lng, r we may get _________(头痛)r sre eyes.2. If we ________(花费)t much time ______ (play) cmputer games, we __________(nt have) enugh time t study r exercise.3 .We shuldn’t believe ____________(一切) we read n the Internet.
________________________________f a spaceship. help dctrs _____________________________. _______________________________ in factries. help businessmen _____________________.
play games and __________________2. _______________ and _____________ at hme. 3. ___________________ by sending e-mails and______________________
get headaches r _____________________. dn’t have enugh time __________________. smething n Internet is nt ________________.
cntrl the speed and directin
find diseases easily
cntrl the rbts
place and cancel rders
watch mvies
cmmunicate
chatting nline
t study r exercise
Task 7. Cmplete the fllwing diagram.
Deep reading
there is n dubt 毫无疑问 keep their hearts beating 使他们的心脏跳动place and cancel rders 下订单和取消订单persnal cmputers 个人电脑d business 做生意 chat nline 在线聊天fr instance 例如 at wrk and at hme 在工作中和家庭生活中break dwn 出故障
Task 8. Read 1a and underline the fllwing phrases.
There is n dubt that we will be successful.
I dn't dubt that they will be able t slve the prblems.
dubt n. & v. 怀疑，疑惑
(2)dubt (vt.)+ 从句
(3)dubt (vi.)+ abut / f
Dubt is the key t knwledge.
There is n reasn t dubt f his hnesty.
I dubt whether/if he'll change his mind.
(1)dubt (n.)
1.There is n dubt that cmputers are very useful in technlgy and business.毫无疑问电脑在技术和贸易业都非常有用。
Task 9. Language pints.
2.Fr example , tiny cmputers which are inside patients’ bdies can keep their hearts beating nrmally. 例如，病人体内植入微电脑能帮助病人的心脏正常搏动。
tiny very small in size adj. 极小的，微小的
a tiny girl
prep.在……内adv.在里面
3.The whle wrld is cnnected. 网络连接了全世界。
cnnect v. 连接 cnnectin n. 关系，联系
1.cnnect A with B 使A与B连接
2.cnnect sth. (t sth.) 使电、气、水等接通
3.cnnect sb./sth. (with sb./sth.) 与……有联系，把……联系起来
cme int being mre and mre watch mvies thanks t d business instead f chat nline make the wrld smaller
做买卖形成，产生越来越多看电影代替网上聊天使世界更小多亏，由于
Paragraph 2
4. Fr instance, if we wrk n cmputers t lng, we may get headaches r sre eyes.比如：如果我们使用的电脑工作的时间太长，我们就会头昏眼花。fr instance =fr example 用来举例说明某一论点或情况，一般只举同类人或物中的“一个”为例。such as 用来列举事物时，一般列举同类人或事物中的几个例子。 E.g. （1）Many cuntries, Japan, fr instance (fr example),has a lt f earthquakes. （2）I like fruits, such as apples, pears and bananas.
5. Besides, nt everything we read n the Internet is true r gd fr us.另外，我们在网上看到的东西并不都是真实的、有益的。
(1)besides与except用于肯定句时，except意为“除……之外（不再有）”；besides意为“除……之外（还有）”。 eg: I have anther blue pen besides this ne. 除了这支外，我还有另一支蓝色钢笔。（1+1，共2支） We all passed the exam except Tm. 我们都通过了考试，汤姆除外。（整体中……汤姆一人不及格）
(2)except前几乎总有all、any、every、n及其复合词等词。eg：He answered all the questins except the last ne. 除了最后一个问题没答外，其余问题他都答了。(3)except后接名词、代词、动名词和动词原形，这时except=but； 但except后跟副词、介词短语时，不能用but代替。eg：The windw is never pen except in summer. 这扇窗户从来不开，除夏季外。 He did nthing except/ but clean the huse. 他只是打扫了房子。
Task 10. Write a shrt passage with the title with One Day Withut Cmputers. The fllwing infrmatin may help yu. Suppse yu were n a special day in 2030. During the day, there were n cmputers in the wrld. What truble wuld yu have? Yu may begin like this:
One Day Withut Cmputers Tday, when I gt up, I just turned n the cmputer as usual, but it didn’t wrk. Then I tried my brther’s PC, my parents’, even my dg’s, but nne f them wrked. Later, it was reprted n TV that all f the cmputers in the wrld brke dwn tday…
One Day Withut Cmputers Tday, when I gt up, I just turned n the cmputer as usual, but it didn’t wrk. Then I tried my brther’s PC, my parents’, even my dg’s, but nne f them wrked. Later, it was reprted n TV that all f the cmputers in the wrld brke dwn tday. S the wrld is quite different. Fr instance, we can’t play games, watch mvies r d shpping at hme. Besides, we can’t cmmunicate by sending e-mails r chatting nline. Withut the help f cmputers, businessmen can’t place r cancel rders nline. Teachers can’t give lessns t their students. What’s wrse, rbts cntrlled by cmputers can’t d dangerus wrk fr humans. Even the dctrs can’t find the diseases easily. In shrt, we almst have truble with everything withut cmputers tday.
1. Sme wrds: dubt, tiny, inside, brain,cancel, cnnect 2. Sme phrases: n dubt, fr instance 3. Sme sentences:(1) There is n dubt that cmputers are very useful in technlgy and business(2) Cmputers help us at wrk and at hme, but they must be used prperly.
1. Talk abut the imprtance f cmputers. 2. Write a cmpsitin by using ur imaginatin.
1. I like the by .The by always help thers. I like the by __________________always helps thers.2. Shenzhu X is a spaceship . It was launched with three astrnauts in 2013. Shenzhu X is a spaceship _______________was launched with three astrnauts in 2013 3.China is a great cuntry. China has abut 5000 years f histry. China is a great cuntry_________ has abut 5000 years f histry. 4. In factries, rbts are cntrlled by cmputers. Rbts are cntrlled by cmputers are like human brains. In factries, rbts are cntrlled by cmputers________________ are like human brains.
prperly, besides, brught, get, enugh
Cmputers have imprved ur lives, but they have _______prblems, t. Fr instance, if we wrk n cmputers t lng, we may _____ headaches r sre eyes. If we play cmputer games t much, we wn’t have ______ time t study r exercise. ______ , nt everything we read n the Internet is true r gd fr us. Cmputers help us at wrk and at hme, but they must be used _______.
Read 1a.Memrize the useful expressins and key sentences which we learned tday.Finish Sectin C in yur wrkbk.Review Sectins A-C.
1)招待，娱乐 n. entertainment2)怀疑，疑惑 n.& v. dubt3)极小的，微小的 adj. tiny4)在……内，在……里 prep.& adv. inside5)通常，在正常情况下 adv. nrmally6)脑，智力，脑力 n. brain7)取消，撤销 v. cancel8)工作场 所 n. wrkplace9)连接， 把…联系起来 v. cnnect10)除……之外（还） prep.& adv. besides11)正确地，恰当地 adv. prperly12)无疑地 n dubt 13)例如 fr instance
Let’s watch a vide:
What are the cmputers used fr?
Cmputers were invented in the USA in the 1950s, nw they have becme very imprtant in many areas f wrk and leisure.
Dctrs can find diseases easily with the help f cmputers.
Fr example, tiny cmputers which are inside patients' bdies can keep their hearts beating nrmally.
In space, cmputers have been used t cntrl the speed and directin f a spaceship.
Peple can d shpping and d business at hme by using cmputers.
Task 1. Tick the fields we use the cmputer in.
educatin business industry cmmunicatin daily life medical care entertainment sprts
Read the passage and give it a title.————————————
The Imprtance f Cmputer
Fast reading
Underline the tpic sentence fr each paragraph.
Since cmputer were invented in the USA in the 1950s, they have becme very imprtant in many areas f wrk and leisure .
Since the Internet came int being, peple’s lives at hme have been changed ,t.
Cmputers have imprved ur lives, but they have brught prblems, t.
TIP：Tpic sentence usually lies at the beginning f a paragraph.
Task 4. Read Paragraph 1 and fill in the blanks.
cntrl the speed and directin
find diseases easily and slve ther prblems
d dangerus wrk
used t place and cancel rders
Careful reading
Task 5. Read Paragraph 2 and answer the questins.
1 Have peple’s lives at hme been changed since the Internet came int being? 2 What d peple use their persnal cmputers fr? 3 The Internet is making the wrld smaller, isn’t it?
Yes, they have.
Peple can use their cmputers t play games, watch mvies, d shpping, d business, send e-mails and chat.
Yes, it is.
Task 6. Read Paragraph 3 and fill in theblanks.
Hw shuld we use cmputers prperly?1. We shuldn’t ________ (从事) cmputers t lng, r we may get _________(头痛)r sre eyes.2. If we ________(花费)t much time ______ (play) cmputer games, we __________(nt have) enugh time t study r exercise.3 .We shuldn’t believe ____________(一切) we read n the Internet.
________________________________f a spaceship. help dctrs _____________________________. _______________________________ in factries. help businessmen _____________________.
play games and __________________2. _______________ and _____________ at hme. 3. ___________________ by sending e-mails and______________________
get headaches r _____________________. dn’t have enugh time __________________. smething n Internet is nt ________________.
cntrl the speed and directin
find diseases easily
cntrl the rbts
place and cancel rders
watch mvies
cmmunicate
chatting nline
t study r exercise
Task 7. Cmplete the fllwing diagram.
Deep reading
there is n dubt 毫无疑问 keep their hearts beating 使他们的心脏跳动place and cancel rders 下订单和取消订单persnal cmputers 个人电脑d business 做生意 chat nline 在线聊天fr instance 例如 at wrk and at hme 在工作中和家庭生活中break dwn 出故障
Task 8. Read 1a and underline the fllwing phrases.
There is n dubt that we will be successful.
I dn't dubt that they will be able t slve the prblems.
dubt n. & v. 怀疑，疑惑
(2)dubt (vt.)+ 从句
(3)dubt (vi.)+ abut / f
Dubt is the key t knwledge.
There is n reasn t dubt f his hnesty.
I dubt whether/if he'll change his mind.
(1)dubt (n.)
1.There is n dubt that cmputers are very useful in technlgy and business.毫无疑问电脑在技术和贸易业都非常有用。
Task 9. Language pints.
2.Fr example , tiny cmputers which are inside patients’ bdies can keep their hearts beating nrmally. 例如，病人体内植入微电脑能帮助病人的心脏正常搏动。
tiny very small in size adj. 极小的，微小的
a tiny girl
prep.在……内adv.在里面
3.The whle wrld is cnnected. 网络连接了全世界。
cnnect v. 连接 cnnectin n. 关系，联系
1.cnnect A with B 使A与B连接
2.cnnect sth. (t sth.) 使电、气、水等接通
3.cnnect sb./sth. (with sb./sth.) 与……有联系，把……联系起来
cme int being mre and mre watch mvies thanks t d business instead f chat nline make the wrld smaller
做买卖形成，产生越来越多看电影代替网上聊天使世界更小多亏，由于
Paragraph 2
4. Fr instance, if we wrk n cmputers t lng, we may get headaches r sre eyes.比如：如果我们使用的电脑工作的时间太长，我们就会头昏眼花。fr instance =fr example 用来举例说明某一论点或情况，一般只举同类人或物中的“一个”为例。such as 用来列举事物时，一般列举同类人或事物中的几个例子。 E.g. （1）Many cuntries, Japan, fr instance (fr example),has a lt f earthquakes. （2）I like fruits, such as apples, pears and bananas.
5. Besides, nt everything we read n the Internet is true r gd fr us.另外，我们在网上看到的东西并不都是真实的、有益的。
(1)besides与except用于肯定句时，except意为“除……之外（不再有）”；besides意为“除……之外（还有）”。 eg: I have anther blue pen besides this ne. 除了这支外，我还有另一支蓝色钢笔。（1+1，共2支） We all passed the exam except Tm. 我们都通过了考试，汤姆除外。（整体中……汤姆一人不及格）
(2)except前几乎总有all、any、every、n及其复合词等词。eg：He answered all the questins except the last ne. 除了最后一个问题没答外，其余问题他都答了。(3)except后接名词、代词、动名词和动词原形，这时except=but； 但except后跟副词、介词短语时，不能用but代替。eg：The windw is never pen except in summer. 这扇窗户从来不开，除夏季外。 He did nthing except/ but clean the huse. 他只是打扫了房子。
Task 10. Write a shrt passage with the title with One Day Withut Cmputers. The fllwing infrmatin may help yu. Suppse yu were n a special day in 2030. During the day, there were n cmputers in the wrld. What truble wuld yu have? Yu may begin like this:
One Day Withut Cmputers Tday, when I gt up, I just turned n the cmputer as usual, but it didn’t wrk. Then I tried my brther’s PC, my parents’, even my dg’s, but nne f them wrked. Later, it was reprted n TV that all f the cmputers in the wrld brke dwn tday…
One Day Withut Cmputers Tday, when I gt up, I just turned n the cmputer as usual, but it didn’t wrk. Then I tried my brther’s PC, my parents’, even my dg’s, but nne f them wrked. Later, it was reprted n TV that all f the cmputers in the wrld brke dwn tday. S the wrld is quite different. Fr instance, we can’t play games, watch mvies r d shpping at hme. Besides, we can’t cmmunicate by sending e-mails r chatting nline. Withut the help f cmputers, businessmen can’t place r cancel rders nline. Teachers can’t give lessns t their students. What’s wrse, rbts cntrlled by cmputers can’t d dangerus wrk fr humans. Even the dctrs can’t find the diseases easily. In shrt, we almst have truble with everything withut cmputers tday.
1. Sme wrds: dubt, tiny, inside, brain,cancel, cnnect 2. Sme phrases: n dubt, fr instance 3. Sme sentences:(1) There is n dubt that cmputers are very useful in technlgy and business(2) Cmputers help us at wrk and at hme, but they must be used prperly.
1. Talk abut the imprtance f cmputers. 2. Write a cmpsitin by using ur imaginatin.
1. I like the by .The by always help thers. I like the by __________________always helps thers.2. Shenzhu X is a spaceship . It was launched with three astrnauts in 2013. Shenzhu X is a spaceship _______________was launched with three astrnauts in 2013 3.China is a great cuntry. China has abut 5000 years f histry. China is a great cuntry_________ has abut 5000 years f histry. 4. In factries, rbts are cntrlled by cmputers. Rbts are cntrlled by cmputers are like human brains. In factries, rbts are cntrlled by cmputers________________ are like human brains.
prperly, besides, brught, get, enugh
Cmputers have imprved ur lives, but they have _______prblems, t. Fr instance, if we wrk n cmputers t lng, we may _____ headaches r sre eyes. If we play cmputer games t much, we wn’t have ______ time t study r exercise. ______ , nt everything we read n the Internet is true r gd fr us. Cmputers help us at wrk and at hme, but they must be used _______.
Read 1a.Memrize the useful expressins and key sentences which we learned tday.Finish Sectin C in yur wrkbk.Review Sectins A-C.
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