高二英語選修七第三單元知識點
相對于高一，高二課程的難度提高了不少，知識容量大增。只有扎實掌握這部分知識才能較為輕松地完成高三總復習。這就對同學們高二期間的英語學習提出了更高要求。以下是小編給大家整理的高二英語選修七第三單元知識點，希望大家能夠喜歡!
高二英語選修七第三單元知識點1
Ⅰ.Hot words and hot phrases常用詞與常用詞組
1.Medical studies show that AIDS virus cannot be transmitted via the following routes：cups，glasses，toilet seats，swimming pools，mosquitoes，other insects or blood donation.(P.49)
2.AIDS is a disease that breaks down the body's immune system and leaves a person defenceless against infections and illness.(P.51)
3.People get AIDS after having been infected with the HIV virus.(P.51)
4.People transmit HIV by having unprotected sex，by receiving infected blood transfusions or，as in Xiaohua's case，through birth.(P.51)
5.Xiaohua's mother contracted the HIV virus when she was 28，and she died of AIDS only three years after Xiaohua was born.(P.51)
6.The disease is spreading faster in Africa and parts of Asia，mainly because of a lack of proper health care，prevention and education.(P.51)
7.The drugs that are available are much too expensive and difficult to find.(P.51)
8....but she does not let that knowledge discourage her.(P.51)
9.She also goes to visit other AIDS patients in hospitals across the country to support them and cheer them up.(P.51)
10.The disease is not the only thing that AIDS patients have to suffer from.(P.52)
11....that can persuade hospitals and companies to allocate more funds for AIDS research and education.(P.52)
12.Xiaohua has learnt to live with HIV and the fact she will eventually get AIDS.(P.52)
13.Two years ago，Dr Richards had asked me a great many questions and had taken samples of my blood.(P.55)
14.Mum held my hand and I saw that she was weeping.(P.55)
15.Cancer is a disease that begins in cells.(P.55)
16.In my body，the production of cells is disrupted.(P.55)
17.Doctors do know that cancer is not caused by injury and is not contagious—it does not spread from one person to another.(P.55)
18.The cancer in my body has been defeated for the moment.(P.55)
19.Living with cancer has made me realize how precious life is and how important it is for us to take every chance to live life to the fullest.(P.55)
20.Every day is a new opportunity and I have learnt to appreciate every minute of each day.
Ⅱ.Language points and grammar focus語言點和語法重點
A.Language points語言點
1.HIV/AIDS is incurable...(P.49)
AIDS is a disease that...leaves a person defenceless against infections and illness.(P.51)
本單元中由前綴或后綴派生出的反義詞的小結
2.People get AIDS after having been infected with the HIV virus.(P.51)
完成時的動名詞的被動式的內涵及用法
3.As with most diseases and disasters，the young suffer the most.
“定冠詞 + 形容詞/過去分詞”表示“一類人”的用法的小結
4.I had been feeling sick for a long time and my mum had taken me to hospital to have me examined.(P.55)
1)過去完成進行時的內涵及用法
2)“to have + 賓語 + 過去分詞”的兩個內涵及用法
5.The treatment was successful and I was able to go home after exactly fourteen months，two days and six hours in hospital.(P.55)
was/were able to do與could do在內涵上的區別及各自的用法
6.I have been living with cancer for two years and...(P.55)
現在完成進行時的內涵及用法
Ⅲ.Skills of the four essential abilities：listening，speaking，reading and writing聽、說、讀、寫四項基本能力的學習技巧
1.Listening：Master the main idea of a long dialogue through the inner connections among the questions so as to have better understanding of the questioned details
從各設問間的內在聯系把握較長對話的中心思想，更好理解各檢測點的細節
2.Speaking：Talk about deadly diseases and attitudes towards AIDS，cancer，etc.
關于那些致命疾病及對待艾滋病、癌癥等的態度的談論
3.Reading：Make full use of informational words and phrases
充分利用信息詞
4.Writing：How to write a personal narrative
如何寫一篇個人經歷過的敘述性故事
高二英語選修七第三單元知識點2
一、不定式做主語：
1、不定式做主語一般表示具體的某次動作。===動名詞doing 表示習慣的，經常的動作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe. (對等)
注: 1). 不定式作主語時,謂語用單數
2). 當主語較長，謂語較短時，常用it做形式主語，而將不定式放到謂語的后面。
it做形式主語，不定式放在謂語動詞之后常用于下列結構中：
(1)It is/was +adj.+of sb. to do…
(2) It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
(3) it is +a +名詞+ to do...
It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do
It takes (sb.) some time / courage / patience …to do…
It requires courage / patience / hard work… to do…
_注意: probable 和 possible 均可作表語，但possible可以用不定式作真實主語， 而probable不能用不定式作真實主語。
It is probable for him to come to the meeting.(錯)
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
二、不定式做表語
主語是以aim duty hope idea intention plan job suggestion wish purpose task 等為中心詞的名詞詞組 或以 what 引導的名詞性從句表示，后面的不定式說明其內容, 不定式作表語常表示將來或現在的動作或狀態。
eg :My idea is to climb the mountain from the north.
Your mistake was not to write that letter.
What I would suggest is to start work at once.
三、動詞不定式作賓語
以不定式結構為賓語的動詞有：
ask, agree, care, choose, demand, decide, expect, fail, help, hope, learn, manage, offer, plan, prepare, pretend, promise, refuse, want, wish等只能用動詞不定式作賓語
口訣(接不定式作賓語的動詞)
想要學習 早打算( want learn plan)
快準備 有希望( prepare hope wish expect)
同意否 供選擇(agree offer choose)
決定了 已答應(decide be determined promise)
盡力去 著手做(manage undertake)
別拒絕 別假裝(refuse pretend)
失敗不是屬于你(fail)
e.g.Tom refused to lend me his pen.
We hope to get there before dark.
The girl decided to do it herself.
_注意:某些及物動詞可用-ing也可用動詞不定式作賓語但意義不同的有
stop go on remember forget
regret try mean can’t help
be used to
高二英語選修七第三單元知識點3
1. slide on a banana skin在香蕉皮上滑倒
2. bump into someone else撞到別人
3. round a corner在拐角處
4. fall down掉下
5. be cruel to …對…殘忍
6. at times有時,常常
7. be content with對…滿意
8. badly off(worse off) 貧困
9. astonish us with the deep feelings
用深厚的感情打動…
10. be born in poverty出生貧寒
11. become famous for變的有名
12. a particular from of acting一種特殊表演方式
13. his entertaining silent movies他滑稽無聲電影
14. be well-known throughout the world舉世聞名
15. wear worn-out shoes穿著破鞋子
16. carry a walking stick拿著手杖
17. a social failure一個社會生活中的失敗分子
18. overcome difficulties克服困難
19. be unkind to sb對…不好
20. a boiled shoe煮熟的鞋子
21. the problem facing sb面對某人的問題
22. thousands of成千上萬
23. rush there in search of沖向…尋找…
24. fortunate enough足夠幸運
25. pick up拾起…/接某人
26. be caught in a snowstorm遭遇到暴風雪
be caught on被…鉤住
27. on the edge of a mountain在大山邊緣
28. pick out挑出
29. cut off切斷,隔絕…
30. as if似乎,好象
31. eat every mouthful with great enjoyment
每口都吃得津津有味
32. star in主演…
33. his lifetime outstanding work
他終生杰出的工作
34. be buried in被埋葬在…
35. knock into撞到…
36. think it funny to…覺得滑稽…
37. play on words說俏皮話
38. treat it as a question把…當作一個問題
39. an answer to the question問題的答案
40. go camping去露營
41. in a mountainous area在山區
42. in the open air在戶外
43. look up at the stars抬頭看著星星
44. how vast the sky is 天空多么廣闊
45. try a third time又試了一次
46. pay special attention to特別注意…
47. bring out the humorous meaning
指出/闡明幽默的意思
48. turn into變成…
49. improve your English vocabulary
擴大英語詞匯量
50. a sense of success成功感,成就感
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