北师大版必修第二册Unit4 Information technology Lesson 1 Avatars Section Ⅰ Topic Talk & Lesson 1 Avatars课件（共43

(共43张PPT)
Section Ⅰ　Topic Talk & Lesson 1 Avatars
词汇新知
一、单词英汉互译
1.　　　　　　 /I neIb l/vt. 使可能,使发生
2.　　　　　　 /I fekt/n. 效应;影响
3.　　　　　　 / Imp kt/ n.影响;作用
4.　　　　　　 /Ik spl /vt. 探究;探讨;探险
5.　　　　　　 / p s n l ti/n. 个性,性格
6.　　　　　　 / d mIt/vi.& vt. 承认
7.　　　　　　 / ImId /n. 图像;形象
enable　
effect　
impact　
explore　
personality
admit　
image　
8.　　　　　　 /trIk/vt. 欺骗,诱骗,哄骗
9.　　　　　　 / kri eI tIv ti/n. 创造力;独创性
10.　　　　　　 / bvi sli/adv. 显而易见地,明显地
11.　　　　　　 /Ik sperIm nt/vi.& vt. 做实验,进行试验　n. 实验
12.　　　　　　 / na deIz/adv. 现今,现时
13.　　　　　　 /k n s n/n. 担忧,忧虑　vt. 与……有关;使担心
14.　　　　　　 /t i t/vt. 欺骗;欺诈
trick　
creativity　
obviously　
experiment　
nowadays　
concern　
cheat　
15.convenience /k n vi ni ns/n. 　 　　
16.addicted / dIktId/ adj. 　　 　
17.recommendation / rek men deI n/n. 　　 　
18.identity /aI dent ti/n. 　　　　 　　　　
19.sensible / sens bl/adj. 　 　 　
20.selection /sI lek n/n. 　 　　
21.virtual / v t u l/adj. 　　 　
22.view /vju /vt. 　　　　　　　　　　
方便,便利　
对……着迷的;沉迷的　
建议,提议;推荐　
身份;特征　
朴素实用的;明智的,合理的　
供选择的同类物品;选择　
虚拟的;模拟的　
看,把……视为
二、短语英汉互译
1.be addicted to 　　　　　
2.a variety of 　　　　　　　　
沉迷
各种各样的
阅读理解
一、阅读课文“AVATARS”,判断正(T)误(F)
1.Avatars have changed a lot since they appeared.(　　)
2.All the people choose avatars that are tall,young and nice-looking.(　　)
3.Avatars people use are either ready-made or created by themselves.(　　)
4.Different people have different views on the use of avatars.(　　)
T
F
T
T
二、阅读课文“AVATARS”,选择正确答案
1.The following accounts are true EXCEPT 　　　.
A.avatars are an important part used to communicate and express oneself online
B.the first simple 2D avatars were firstly used in web chats
C.avatars nowadays have many kinds of forms and uses
D.people online can also use avatars to help them surf the Internet
答案:B　
2.Why do many Internet users have more than one avatar
A.Because they realised that their avatars would be seen by many people,not just their friends.
B.Because they don’t want to look or act like their real selves.
C.Because avatars give people much room for creativity.
D.Because they want to keep their identities secret.
3.How many disadvantages are mentioned in the last paragraph
A.Two.　　　　　　　　 B.Three.
C.Four. D.Five.
答案:A　
答案:A　
三、仔细阅读课文“AVATARS”,并根据课文内容将短文补充完整
Avatars are used by people online to express 1.　　　　　(they).They appeared in role-playing computer games in 2. 　　　　 1980s.Nowadays,
there are many 3. 　　　　　　　(variety) of forms and uses for them to choose from.The avatars that they choose say a lot 4. 　　　　　　 their personalities.Besides,avatars can also give people lots of room for 5. _______　　　　　　　(create) so that they have the power 6.　　　　　　(make) new identities.
7.　　　　　　,the use of avatars has also caused a few concerns.Some are
8.　　　　　　(worry) about spending so much time in virtual worlds
9.　　　　 they are becoming afraid of meeting people in the real world.At the same time,avatars 10.　　　　　　(view) in a more positive light by other users.
themselves　
the　
varieties　
about
creativity　
to make　　
However　
worried　
that
are viewed
1.I love exploring new technologies,because they are so convenient,make life easier,enable better communication,provide convenience...(Page 6)
我热爱探索新科技,因为它们如此便利,使生活更舒适,能让人们更好地交流,提供便利……
★explore vt. 探究;探讨;探险
We’ve explored several ways to solve the problem.
我们已经探讨了几种解决这个问题的方法。
【合作探究(1)】
读一读·细观察　
阅读下列句子,写出句中黑体词的词性和含义
①The exploration of space attracts many countries.
词性 名词　含义 探索
②As an explorer,she often meets with difficulties.
词性 名词　含义 探险家
说一说·勤归纳　
记一记·长知识　
explore还有“勘探”之意,如explore oil勘探石油。
★enable vt. 使可能,使发生
This can really enable us to get closer to each other.
这确实能使我们彼此更加亲近。
【合作探究(2)】
读一读·细观察　
阅读下列句子,写出句中黑体词的词性和含义
①We can enlarge our vocabulary by reading more.
词性 动词　含义 扩大;扩充
②To enrich our school life,our school organises many activities on a regular basis.
词性 动词　含义 充实;使丰富
③The teacher encouraged us not to give up when facing difficulties.
词性 动词　含义 鼓励
④Measures are taken to ensure food safety.
词性 动词　含义 确保
说一说·勤归纳　
记一记·长知识　
en-是动词前缀,可加在某些形容词或名词前面构成动词,有“使……成为某种状态”之意。
★convenience n. 方便,便利
It was a great convenience to have the school so near.
学校这么近真是太方便了。
【合作探究(3)】
读一读·细观察　
阅读下列句子,写出句中黑体词组的含义
①We hope you will accept our invitation if it is convenient for you.
含义 如果你方便的话
②Please let me know as soon as possible at your convenience.
含义 在你方便时
【即学即用】
单句语法填空
①The 　　　　　　(explore) of these ideas is worth the efforts.
②The loan 　　　　　　(enable) Jane to buy the house.
③The secretary arranged a 　　　　　　　　(convenience) time and place for them to have an interview.
完成句子
④Delivery times are arranged　　 　　　 　　　　　　(在您方便时).
⑤I plan to visit you 　 　　 　　 　　 　 　　 (如果您方便的话).
exploration　
enabled　
convenient　
at your convenience
if it is convenient for you
2.Well,too much chatting online makes us addicted to it.(Page 6)
嗯,网上聊天太多让我们上瘾。
★addicted adj. 对……着迷的;沉迷的
be addicted to 沉迷
He is addicted to playing computer games.
他沉迷于玩电脑游戏。
【合作探究】
读一读·细观察　
阅读下列句子,写出句中黑体词的词性和含义
①The problem with video games is that they’re addictive.
词性 形容词
含义 使人上瘾的;使人入迷的
②He is now fighting his addiction to playing online games.
词性 名词
含义 入迷;瘾
③The boy is a screen addict.
词性 名词
含义 对……入迷的人
说一说·勤归纳　
【即学即用】
单句语法填空
①Smoking is a harmful habit and makes people 　　　　　　　(addict) once they start doing it.
②These nuts are so 　　　　　　(addict) that I can’t stop eating them.
③He’s addicted to 　　　　　　(play) cards.
④Her 　　　　　　(addict) to reading books surprised us.
addicted　
addictive　
playing　
addiction
3.Yet,very few people knew that future avatars would have such a wide variety of forms and uses.(Page 9)
然而,几乎没有人知道未来的头像会有如此多样的形式和如此广泛的应用。
★variety n. 多样化,变化
a variety of 各种各样的
Chinese food is famous for its wide variety.
中餐以菜系多样而闻名。
The club offers a wide variety of games to local teenagers.
这个俱乐部给当地的青少年提供了各种各样的游戏。
【合作探究】
读一读·细观察　
阅读下列句子,写出句中黑体词的词性和含义
①The temperature varies greatly from state to state.
词性 动词　含义 变化;改变
②There are various ways of cooking an egg.
词性 形容词　含义 各种各样的
说一说·勤归纳　
【即学即用】
单句语法填空
①When festivals come,cards of 　　　　　　(variety) shapes are sold in shops.
②The colour of the tree 　　　　　　　(vary) with seasons.
③This 　　　　　　(vary) shows up in the growth rings.
完成句子
④He failed to complete the task 　　 　　　　 　　　　(因为种种原因).
⑤_____ _______ _________ ______ ________ (各种各样的书籍) are published every year.
various　
varies　
variation　
for various reasons　
A wide variety of books
4.The use of avatars has also caused a few concerns.(Page 9)
头像的使用也引起了一些担忧。
★concern n.担忧,忧虑
His main concern is to be able to provide for his family.
他最为关心的事就是能够养家。
【合作探究】
读一读·细观察　
阅读下列句子,写出句中黑体词组的含义
①You had better let them know you’re concerned about their health and safety.
含义 对……担忧/担心
②He is concerned with the accident that happened last week.
含义 与……有关
③As far as I’m concerned,the after-school activities can enrich the students’ life.
含义 就……而言
④She looked concerned when listening to the news.
含义 担心的
说一说·勤归纳　
【即学即用】
单句语法填空
①All of us are concerned 　　　　 his safety.
②　　　　　　 far as I’m concerned,I’m not for the plan.
③Who else is concerned 　　　　　　this matter
④He wore a 　　　　　　　 (concern) expression on his face when listening to my account of the accident.
句型转换
⑤In my opinion,he is honest.
→____ _____ ____ ______ _____________,he is honest.
⑥We should show concern for the kids’ health.
→We should _____ ____________ ____________the kids’ health.
about　
As　
with　
concerned　
As far as I’m concerned　
be concerned about
5.However,other users view avatars in a more positive light.(Page 9)
然而,其他使用者从更积极的角度来看待头像。
★view vt. 看,把……视为
We’re supposed to view situations more objectively.
我们应该更客观地看待形势。
【合作探究】
读一读·细观察　
阅读下列句子,写出句中黑体词的词组和含义
①Can’t you see things from my point of view
词组 from one’s point of view
含义 在某人看来
②The museum came into our view.
词组 come into sb’s view
含义 进入某人的视野
阅读下列句子,写出句中黑体词组的含义
③In view of the weather,the event will now be held indoors.
含义 鉴于;考虑到;由于
④There was nobody in view.
含义 在视野范围内
⑤The painting is now on view at the gallery.
含义 在展出
⑥She doesn’t view herself as a success.
含义 把……视为……
说一说·勤归纳　
记一记·长知识　
view还有“观看,察看”之意;viewer是名词,表示“观众;观看者”。view加上表示“在……之前”的前缀pre-构成preview,表示“预习”;加上表示“再;重复”的前缀re-构成review,表示“复习”。
【即学即用】
单句语法填空
①　　　　　　 my view,playing computer games is a waste of time.
②We view film 　　　　　　a type of contemporary art.
③The castle came 　　　　　　view as we turned the corner.
完成句子
④The exhibits are ______ __________(展出) from 9 am to 5 pm.
⑤_____ _________ _____ _____ ______ (考虑到这个事实),it’s useless to continue the plan.
In
as　
into　
on view
In view of the fact
6.They look forward to a time when their avatar will act like a real person and travel around bigger,more exciting virtual worlds.(Page 9)
他们期待着有朝一日,自己的虚拟形象会像真人一样去环游更广阔、更精彩的虚拟世界。
剖析 句中的when引导的是定语从句,修饰先行词a time。
There was a time when he wanted to get away from the noisy city.
有一段时间,他想离开这个喧闹的城市。
★look forward to 期盼,盼望(to为介词)
I look forward to meeting you again.
我期待再次与你相见。
【即学即用】
单句语法填空
①There was a time 　　　　　　there were many great philosophers.
②I’m looking forward to 　　　　　　(hear) from you.
③The day we had been looking forward to 　　　　　　(come) at last.
when　
hearing　
came
一、单词拼写
1.It’s my dream that I can e　　　　　 the Arctic regions.
答案:explore
2.—She is easy to get along with.
—Yes,she has an easy-going p　　　　　　.
答案:personality
3.—Why are the gates open all the time
—It’s for the c　　　　　　 of visitors.
答案:convenience
4.What my teacher has taught me has a deep e　　　　　　 on me.
答案:effect
5.The old couple were t　　　　　　 into buying something useless.
答案:tricked
6.The scientists are 　　　　　　(做实验) with the animals.
答案:experimenting
7.She is a 　　　　　　(明智的) girl.
答案:sensible
8.　　　　　　(显而易见),hard work pays off.
答案:Obviously
9.He was caught 　　　　　　(欺诈) last week.
答案:cheating
二、单句语法填空
1.There is a 　　　　　　　(convenient) store nearby.
答案:convenience
2.In 　　　　　1990s,great changes took place in China.
答案:the
3.She can express 　　　　　　　(she) in English fluently.
答案:herself
4.It was a time 　　　　　they should be able to be independent.
答案:when
5.American English is a 　　　　　　　(vary) of English.
答案:variety
三、用所给短语的适当形式填空
be addicted to　a variety of　express oneself
experiment with　look forward to　view...as...
at one’s convenience　be concerned about
1.The shopping mall offers 　　　　　　　　　　　　　goods for us to choose from.
答案:a variety of
2.The government 　　　　　　　　　　　those people in poor areas.
答案:is concerned about
3.I can’t 　　　　　　　　　　　　clearly with my broken English.
答案:express myself
4.Come by to pick me up 　　　　　　　　　　　　　　　　　　　　.
答案:at your convenience
5.Some young people 　　　　　　　　　　chatting online,which is harmful to them.
答案:are addicted to
6.We 　　　　　　　　　　　　seeing you again.
答案:look forward to
7.You should 　　　　　doing voluntary work 　　　　　　a chance to improve yourself.
答案:view;as
8.The students should be encouraged 　　　　　　　　　　　　　　their new ideas.
答案:to experiment with
本课结束