外研版（2019）选择性必修第二册Unit4Breaking boundaries Period Ⅰ词，句重难点习题课件(共26张PPT)

(共26张PPT)
Unit 4
Breaking boundaries
Period Ⅰ
Starting out & Understanding ideas
01
02
句子控
模块
导航
词汇斩
定向练1
在空白处填入1个适当的单词或括号内单词的正确形式。
1．Can we employ someone as an ________ (assist) to help with all this paperwork
2．Unless we receive more financial ________ (assist) from the government, the hospital will have to close.
【解析】
1．assistant　句意为：我们能雇一个人做助手来帮我们做这些文书工作吗？
2．assistance　句意为：除非我们得到政府更多的财务援助，否则这家医院将不得不关闭。
词汇斩
3．The man ________ (assist) the police with their enquiries at the moment.
4．A team of nurses assisted the doctor ________ performing the operation.
【解析】
3．is assisting　句意为：这个人目前正在协助警方进行调查。
4．in　句意为：一支护士队伍协助那名医生做了那次手术。
词汇斩
5．She came ________ my assistance in time of trouble.
【解析】
5．to　句意为：在我遇到麻烦时她过来帮我了。
词汇斩
定向练2
一、翻译句子。
1．父母应当参与子女的教育。
________________________________________________________________________
________________________________________________________________________
【解析】
1.Parents should involve themselves in their children's education./Parents should be/get involved in their children's education.
词汇斩
2．别让我来帮你解决问题。
________________________________________________________________________
________________________________________________________________________
【解析】
2．Don't involve me in solving your problems.
词汇斩
二、用involve的正确形式填空。
1．It is reported that there are many health problems________with smoking.
2．Thanks to your________， we succeeded in completing the project.
【解析】
1. involved 　句意为：据报道，许多健康问题都与吸烟有关。
2．involvement　句意为：多亏你的参与，我们成功地完成了这个项目。
词汇斩
3．[天津2020年7月·改编]All who participated have gained a positive outcome from getting ________ (involve)．
【解析】
3. involved　句意为：所有参加(这个项目)的人都在参与中得到了积极的结果。
词汇斩
定向练3
根据汉语意思完成句子。
1．一旦所有的工作结束，我就去度假。
I will go on vacation, once all the work is ________ ________ ________.　
【解析】
1. at an end　
词汇斩
2．我们不得不等到他们之间的讨论结束。
We have to wait until the discussion between them ________ ________ ________ ________.　
【解析】
2. comes to an end　
词汇斩
3．那位科学家坚持他的发明，最后成功了。
The scientist stuck to his invention and he succeeded ________ ________ ________.
4．我想在这个月底之前解决这件事。
I would like to get this matter settled ________ ________ ________ ________ this month.
【解析】
3．in the end　
4.by the end of　　
词汇斩
5．裁判在比赛结束时吹响了哨子。
The referee blew a whistle ________ ________ ________ ________ the game.
【解析】
5. at the end of　
词汇斩
定向练4
在空白处填入1个适当的单词或括号内单词的正确形式。
1．The girl impressed us with her ________ (devote) to helping the people in need.
2．The time he has devoted in the past year to________ (help) the disabled is now considered________ (be) of great value.
【解析】
1．devotion　
2. helping; to be　　
词汇斩
3．He is considering ________ (devote) himself to ________ (educate) these children of the mountain village.
4．Her son, ________ whom she was so ________ (devote) went abroad 10 years ago, leaving her alone in the small village.
【解析】
3．devoting; educating
4．to; devoted　　
词汇斩
5．To her delight, what she had devoted herself ________ resulted in success.
【解析】
5. to　　
词汇斩
句子控
定向练1
根据汉语意思完成句子。
1．自从我被派到北京负责这个项目以来，我很少有机会回到我的家乡。(in charge of)
I have rarely had any chance to return to my hometown ____________________________．
2．因为我现在正在准备高考，我把许多空闲时间都用于学习。
________________________________， I spend much of my spare time studying.
【解析】
1．since I was sent to Beijing in charge of the project
2．Since I am now preparing for the national college entrance examination
句子控
3．自2011年以来，该国种植的玉米的量超过了水稻。(grow)
Since 2011, the country ________________________________．
4．他两周前离家外出，我们至今还没有他的音信。
He left home two weeks ago and we ______________________________．
【解析】
3．has grown more corn than rice
4．haven't heard from him since
句子控
定向练2
一、在空白处填入1个适当的单词。
1．________ the average age of the population increases, there are more and more old people need care.
2．Just ________ a single word can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.
【解析】
1. As　句意为：随着人口平均年龄的增长，越来越多的老年人需要照顾。
2．as　句意为：正如一个词可以改变一个句子的意思一样，一个句子也可以改变一个段落的意思。
句子控
3．You must do the exercises ________ I tell you.
【解析】
3．as　句意为：你必须按照我告诉你的方法做这些练习。
句子控
二、翻译句子。
1．As it's dark, we'd better go off work.　
________________________________________________________________________
________________________________________________________________________
【解析】
1. 天黑了，我们最好还是下班吧。
句子控
2．Young as she is, she knows how to deal with such a thing.
________________________________________________________________________
________________________________________________________________________
【解析】
2．她虽然很年轻，但懂得如何处理这样的事。
句子控
定向练3
根据汉语意思完成句子。
1．当我们看到道路被大雪封住后，我们决定在家度过这个假期。
When we saw the road ________(block) with snow, we decided to spend the holiday at home.
2．有人注意到那个黑发男子离开了那间房子。
The dark haired man was noticed ________ (leave) the house.
【解析】
1．blocked　
2. to leave
句子控
3．无论何时我遇到麻烦，我都能听到耳边回响着一个声音在说“你能行”。
Whenever I'm in trouble, I hear a voice ________ (ring) in my ears “You can do it.”
4．那位经理想看到他的计划被尽可能快地执行。
The manager would like to see his plan ________ (carry) out as soon as possible.　
【解析】
3. ringing　
4. carried
句子控
定向练4
根据汉语意思完成句子。
1．那是我第一次当面和校长讲话。
It was the first time that ________________________.
2．这是我第一次看到这么美丽的景色。
It is the first time ________________________.
【解析】
1．I had talked to the headmaster face to face
2．(that) I have seen such a wonderful scene