(共21张PPT)
Unit 4 Breaking boundaries
Section Ⅱ Using language
1.通过对教材的理解，了解重要词汇的基本用法。（语言能力）
2.通过对教材课文的阅读，在课文的具体情境中理解和掌握it作形式主语的用法。（语言能力）
3.通过导学案的套用，以练促学，巩固内化it作形式主语的用法，并学以致用。（学习能力）
核心单词
知识点1 cast vt.（cast，cast）选派（角色）
（P41）Even now, to cast white actors as Asian characters is seen as acceptable by film studios.即使是现在，让白人演员扮演亚裔角色也被电影制片厂认为是可以接受的。
知识拓展
cast sb as sth选某人扮演某个角色
cast a film为电影选角
熟词生义
cast n. 演员阵容； 投掷
The play succeeded thanks to the wonderful performance of all the cast.由于全体演员的精彩表演, 这部戏获得了成功。
The cast of the line is crucial to fly fishing.投掷鱼线对飞钓来说很关键。
融会应用 单句填空
（1）In the film she _________ （cast） as a hardworking upright middle-aged
woman.
was cast
（2）The girl was cast___ a college professor, though she was young.
as
知识点2 harmonious adj.和睦的；融洽的 ＊harmony n.和睦；和谐；协调；一致 ＊harmonize v.（使）协调；（使）一致
（P42）Rather， it's about countries and people making a joint effort to come together to create a more harmonious and understanding world， so that we can all enjoy the mutual benefits.相反，国家和人民要共同努力，携手创造一个更加和谐且相互理解的世界，以便我们都能互惠互利。
知识拓展
in harmony with 与……协调一致/和睦
be out of harmony with 与……不协调一致/不和睦
live in harmony with 与……和谐相处
图解释义
A harmonious team is more likely to succeed.一个和谐的团队更有可能成功。
融会应用 单句填空
（1）I have a dream that human could live in harmony _____ the beautiful nature.
with
（2）The colors of your coat， hat and muffler should __________ （harmony）.
harmonize
知识点3 rewarding adj.值得做的；有意义的 ＊reward v.酬谢；奖励；奖赏 n.奖金；回报；报酬
（P42）It was rewarding to see how our work helped bring people together from different cultures.看到我们的工作如何帮助来自不同文化的人们聚集在一起是有意义的。
知识拓展
in reward for 为奖赏……；为报答……
as a reward for 作为对……的奖赏/回报
reward sb for sth 因某事而奖赏/酬谢某人
reward sb with sth 用某物回报某人
图解释义
His hard work and effort are finally rewarding.他的勤奋努力终有回报。
易混辨析
reward和award 的用法区别:
（1）reward作动词时意为“奖励；奖赏”，多指因对方的工作、服务、帮助而给予报酬或奖赏。常用搭配:reward sb for （doing） sth。作名词时表示“报酬；奖金”。
（2）award作动词时意为“授予；颁发”，指正式或官方地颁发、授予；也可指法庭裁决给予，它指一种官方的奖励行为。常用搭配:award sb sth=award sth to sb。作名词时表示“奖品；奖金”。
融会应用
Ⅰ.用reward、award的正确形式填空
Mo Yan was （1）__________ the Nobel Prize in Literature. In his spare time，he has always been ready to help young writers. How can we （2）__________ his kindness
awarded
reward
Ⅱ.一句多译
我送给他一本书来答谢他的帮助。
（3）_____________________________________________________（reward n.）
I gave him a book in reward for/as a reward for his help.
（4）______________________________________（reward v.）
I rewarded him with a book for his help.
it作形式主语
自主探究
阅读下列句子,并注意黑体部分的用法。
1.Even after all that， no one could give my disease a name and it is difficult to know what the future holds.
2.It takes a lot of time to look after my pets properly but I find it worthwhile.
3.It is no use talking with him again.
4.It is said that he will leave Beijing for London on business.
我的发现 上述句子中，it在句中均作__________，句1和句2中真正的主语是
____________，句3中真正的主语是_____________，句4中真正的主语是_________。
形式主语
动词不定式
动词-ing形式
that从句
探究点1 it作形式主语，动词不定式to do作真正的主语
1.It is/was+adj.+（for/of sb） +to do sth
在“It is/was+adj.+（for/of sb） +to do sth”结构中，for前面的形容词通常是difficult、necessary、important、quick、easy等，这些形容词多与事物的特征有关，而of前面的形容词常常是wise、kind、stupid、silly、bright、nice、good等，这些形容词常常与人的性格特点有关。
It is kind of him to give me a hand.他人真好，帮助了我。
It is not easy to learn English well.=To learn English well is not easy.掌握英语不容易。
2.It+ v.+宾语+ to do sth
It takes time and efforts to master English.掌握英语需要时间和努力。
3.It is/was +n.+ to do sth
It is our duty to try our best to deal with these problems.尽我们最大努力去处理这些问题是我们的责任。
4.It is/was +介词短语+ to do sth
It is beyond my power to answer this question.我回答不出这个问题。
探究点2 it作形式主语，动词-ing形式作真正的主语
当use、 good、 waste、worth、bore、fun、shame、encouragement、misery等名词作表语时，通常用it作形式主语，把作为真正主语的动词-ing形式后置。
It is no good refusing to do it.拒绝做这个是没有好处的。
It is a waste of time trying to reason with him.跟他讲道理就是浪费时间。
It is a bore doing the same kind of work every day.每天做同样的工作真无聊。
It is fun having guests for the weekend.周末有客人很有趣。
It is such an encouragement being able to pass all the exams.能通过所有的考试真是一种鼓励。
探究点3 it作形式主语，从句作真正的主语
1.It is/was+adj.（+for/of sb）+主语从句
It is uncertain whether/if she can come to the party.她是否能来参加聚会还不确定。
It was not clear what she meant.她什么意思不是很清楚。
2.It is/was +n.+主语从句
It is a pity that he can't go with us.他不能和我们一起去，这真是个遗憾的事。
It is our hope that our city will be better.我们的希望是我们的城市会变得更好。
It is a problem whether we can find the kid there.我们能否在那里找到这个孩子还是一个问题。
3.It is/was+动词-ed形式+主语从句
It is not decided who will give the speech.还没决定谁来发言。
It is reported that no passengers were injured in the accident.据报道，这次事故中没有乘客受伤。
注意：在“It is+suggested/advised/ordered/requested/required/insisted/demanded...+that从句”中，从句谓语常用“should+动词原形”，should可省略。
4.It+v.（+宾语或状语）+主语从句
It happened that I wasn't in the office that day.碰巧那天我不在办公室。
It struck me that there was a box under my desk.我忽然想起来我的桌子下面有一个箱子。
Ⅰ.单句填空
1.Sometimes it may be helpful _______（use） examples to explain abstract concepts.
to use
2.Though it is nice ___you to put him up，it is impossible ____him to sleep on such
a small bed.
of
for
3.It is my duty ________（help） you with English.
to help
4.It is careless of you_________（make） so many mistakes in the exam.
to make
5.It's no good_______（eat） too much at a meal.
eating
6.It will make no difference ________he will attend the meeting or not.
whether
7.It's hard for us ________（learn） English well.
to learn
8.It will take the workers over a year ________（build） the bridge.
to build
Ⅱ.语法填空
I 1.____________（study） English for six years. It was difficult for me
2.____________（remember） new words at first. I tried every means， but it was
no use 3.________（recite） them over and over again. It was very kind of you
4.________（offer） me some suggestions. It is necessary 5._____________
（understand） its meaning in sentences. It is no wonder 6._____ your English is
good. It is requested 7._____ everyone should master proper methods of learning.
8.___was a shame that I hadn't asked you for help earlier. I will try my best to
improve my English. 9.___ is hoped that I will pass the TOEFL test and have a
chance to study abroad. Thanks for your help. I would be grateful 10.___ you could
give me a reply soon.
have studied
to remember
reciting
to offer
to understand
that
that
It
It
ifUnit 4 Section Ⅱ Using language
【学习目标】
1.通过对教材的理解,了解重要词汇的基本用法。(语言能力)
2.通过对教材课文的阅读,在课文的具体情境中理解和掌握it作形式主语的用法。(语言能力)
3.通过导学案的套用,以练促学,巩固内化it作形式主语的用法,并学以致用。(学习能力)
【合作探究】
新知探究
核 心 单 词
知识点1 cast vt. (cast, cast)选派(角色)
(P41)Even now, to cast white actors as Asian characters is seen as acceptable by film studios.即使是现在,让白人演员扮演亚裔角色也被电影制片厂认为是可以接受的。
知识拓展
cast sb as sth选某人扮演某个角色
cast a film为电影选角
熟词生义
cast n. 演员阵容; 投掷
The play succeeded thanks to the wonderful performance of all the cast.由于全体演员的精彩表演, 这部戏获得了成功。
The cast of the line is crucial to fly fishing.投掷鱼线对飞钓来说很关键。
融会应用 单句填空
(1)In the film she (cast) as a hardworking upright middle-aged woman.
(2)The girl was cast a college professor, though she was young.
答案 (1)was cast (2)as
知识点2 harmonious adj.和睦的;融洽的 *harmony n.和睦;和谐;协调;一致 *harmonize v.(使)协调;(使)一致
(P42)Rather, it's about countries and people making a joint effort to come together to create a more harmonious and understanding world, so that we can all enjoy the mutual benefits.相反,国家和人民要共同努力,携手创造一个更加和谐且相互理解的世界,以便我们都能互惠互利。
知识拓展
in harmony with 与……协调一致/和睦
be out of harmony with 与……不协调一致/不和睦
live in harmony with 与……和谐相处
图解释义
A harmonious team is more likely to succeed.一个和谐的团队更有可能成功。
融会应用 单句填空
(1)I have a dream that human could live in harmony the beautiful nature.
(2)The colors of your coat, hat and muffler should (harmony).
答案 (1)with (2)harmonize
知识点3 rewarding adj.值得做的;有意义的 *reward v.酬谢;奖励;奖赏 n.奖金;回报;报酬
(P42)It was rewarding to see how our work helped bring people together from different cultures.看到我们的工作如何帮助来自不同文化的人们聚集在一起是有意义的。
知识拓展
in reward for 为奖赏……;为报答……
as a reward for 作为对……的奖赏/回报
reward sb for sth 因某事而奖赏/酬谢某人
reward sb with sth 用某物回报某人
图解释义
His hard work and effort are finally rewarding.他的勤奋努力终有回报。
易混辨析
reward和award 的用法区别:
(1)reward作动词时意为“奖励;奖赏”,多指因对方的工作、服务、帮助而给予报酬或奖赏。常用搭配:reward sb for (doing) sth。作名词时表示“报酬;奖金”。
(2)award作动词时意为“授予;颁发”,指正式或官方地颁发、授予;也可指法庭裁决给予,它指一种官方的奖励行为。常用搭配:award sb sth=award sth to sb。作名词时表示“奖品;奖金”。
融会应用
Ⅰ.用reward、award的正确形式填空
Mo Yan was (1) the Nobel Prize in Literature.In his spare time,he has always been ready to help young writers.How can we (2) his kindness
Ⅱ.一句多译
我送给他一本书来答谢他的帮助。
(3) (reward n.)
(4) (reward v.)
答案 (1)awarded (2)reward (3)I gave him a book in reward for/as a reward for his help.
(4)I rewarded him with a book for his help.
语法探究
it作形式主语
自主探究
阅读下列句子,并注意黑体部分的用法。
1.Even after all that, no one could give my disease a name and it is difficult to know what the future holds.
2.It takes a lot of time to look after my pets properly but I find it worthwhile.
3.It is no use talking with him again.
4.It is said that he will leave Beijing for London on business.
我的发现
上述句子中,it在句中均作 ,句1和句2中真正的主语是 ,句3中真正的主语是 ,句4中真正的主语是 。
答案 形式主语;动词不定式;动词-ing形式;that从句
探究点1 it作形式主语,动词不定式to do作真正的主语
1.It is/was+adj.+(for/of sb) +to do sth
在“It is/was+adj.+(for/of sb) +to do sth”结构中,for前面的形容词通常是difficult、necessary、important、quick、easy等,这些形容词多与事物的特征有关,而of前面的形容词常常是wise、kind、stupid、silly、bright、nice、good等,这些形容词常常与人的性格特点有关。
It is kind of him to give me a hand.他人真好,帮助了我。
It is not easy to learn English well.=To learn English well is not easy.掌握英语不容易。
2.It+ v.+宾语+ to do sth
It takes time and efforts to master English.掌握英语需要时间和努力。
3.It is/was +n.+ to do sth
It is our duty to try our best to deal with these problems.尽我们最大努力去处理这些问题是我们的责任。
4.It is/was +介词短语+ to do sth
It is beyond my power to answer this question.我回答不出这个问题。
探究点2 it作形式主语,动词-ing形式作真正的主语
当use、 good、 waste、worth、bore、fun、shame、encouragement、misery等名词作表语时,通常用it作形式主语,把作为真正主语的动词-ing形式后置。
It is no good refusing to do it.拒绝做这个是没有好处的。
It is a waste of time trying to reason with him.跟他讲道理就是浪费时间。
It is a bore doing the same kind of work every day.每天做同样的工作真无聊。
It is fun having guests for the weekend.周末有客人很有趣。
It is such an encouragement being able to pass all the exams.能通过所有的考试真是一种鼓励。
探究点3 it作形式主语,从句作真正的主语
1.It is/was+adj.(+for/of sb)+主语从句
It is uncertain whether/if she can come to the party.她是否能来参加聚会还不确定。
It was not clear what she meant.她什么意思不是很清楚。
2.It is/was +n.+主语从句
It is a pity that he can't go with us.他不能和我们一起去,这真是个遗憾的事。
It is our hope that our city will be better.我们的希望是我们的城市会变得更好。
It is a problem whether we can find the kid there.我们能否在那里找到这个孩子还是一个问题。
3.It is/was+动词-ed形式+主语从句
It is not decided who will give the speech.还没决定谁来发言。
It is reported that no passengers were injured in the accident.据报道,这次事故中没有乘客受伤。
注意:在“It is+suggested/advised/ordered/requested/required/insisted/demanded...+that从句”中,从句谓语常用“should+动词原形”,should可省略。
4.It+v.(+宾语或状语)+主语从句
It happened that I wasn't in the office that day.碰巧那天我不在办公室。
It struck me that there was a box under my desk.我忽然想起来我的桌子下面有一个箱子。
【随堂检测】
夯实基础
Ⅰ.单句填空
1.Sometimes it may be helpful (use) examples to explain abstract concepts.
2.Though it is nice you to put him up,it is impossible him to sleep on such a small bed.
3.It is my duty (help) you with English.
4.It is careless of you (make) so many mistakes in the exam.
5.It's no good (eat) too much at a meal.
6.It will make no difference he will attend the meeting or not.
7.It's hard for us (learn) English well.
8.It will take the workers over a year (build) the bridge.
答案 1.to use 2.of; for 3.to help 4.to make 5.eating 6.whether 7.to learn 8.to build
Ⅱ.语法填空
I 1.(study) English for six years. It was difficult for me 2.(remember) new words at first. I tried every means, but it was no use 3.(recite) them over and over again. It was very kind of you 4.(offer) me some suggestions. It is necessary 5.(understand) its meaning in sentences. It is no wonder 6. your English is good. It is requested 7. everyone should master proper methods of learning. 8.was a shame that I hadn't asked you for help earlier. I will try my best to improve my English. 9. is hoped that I will pass the TOEFL test and have a chance to study abroad. Thanks for your help.I would be grateful 10. you could give me a reply soon.
答案 1.have studied 2.to remember 3.reciting 4.to offer 5.to understand 6.that 7.that 8.It
9.It 10.if
2
