高考關(guān)于英語考試的知識點總結(jié)
高考是一種經(jīng)歷,也是一種體驗。每天進步一點點,基礎(chǔ)扎實一點點,通過考試就會更容易一點點。接下來是小編為大家整理的高考關(guān)于英語考試的知識點總結(jié),希望大家喜歡!
高考關(guān)于英語考試的知識點總結(jié)一
助動詞
1)協(xié)助主要動詞構(gòu)成謂語動詞的詞叫助動詞。被協(xié)助的動詞稱作主要動詞。助動詞自身沒有詞義,不可單獨使用。例如:
He doesn′t like English. 他不喜歡英語。
(doesn′t是助動詞,無詞義;like是主要動詞,有詞義)
2) 助動詞協(xié)助主要動詞完成以下功用,可以用來:
a. 表示時態(tài)。例如:
He is singing. 他在唱歌。(北京安通學(xué)校提供)
He has got married. 他已結(jié)婚。
b. 表示語態(tài)。例如:
He was sent to England. 他被派往英國。
c. 構(gòu)成疑問句。例如:
Do you like college life? 你喜歡大學(xué)生活嗎?
Did you study English before you came here? 你來這兒之前學(xué)過英語嗎?
d. 與否定副詞not合用,構(gòu)成否定句。例如:
I don′t like him. 我不喜歡他。
e. 加強語氣。例如:
Do come to the party tomorrow evening. 明天晚上一定來參加晚會。
He did know that. 他的確知道那件事。
3) 最常用的助動詞有:be, have, do, shall, will, should, would等。
3 助動詞be的用法
1) be +現(xiàn)在分詞,構(gòu)成進行時態(tài)。例如:
They are having a meeting. 他們正在開會。
English is becoming more and more important. 英語現(xiàn)在越來越重要。(北京安通學(xué)校提供)
2) be + 過去分詞,構(gòu)成被動語態(tài)。例如:
The window was broken by Tom.. 窗戶是湯姆打碎的。
高考關(guān)于英語考試的知識點總結(jié)二
一、直接考查連詞but在語境中的用法即要求考生根據(jù)試題的語境(看其是否有轉(zhuǎn)折意味)來確定連詞but的正確使用。這類考題通常會將連詞but與連詞and,so,or等結(jié)合起來考查。同學(xué)們做題時要注意比較,尤其要注意比較各個連詞填入句子后,比較句意的邏輯性和通暢性。如:
1. You have failed two tests. You'd better start working harder,_________ you won't pass the course.
A. and B. so C. but D. or
「解析」D.or的意思是"否則""要不然",只有此詞填入空格,句意最通順。
2. They wanted to charge ,000 for the car,_________ we managed to bring the price down.
A. but B. so C. when D. since
「解析」A.前后兩分句之間是轉(zhuǎn)折關(guān)系,故用but.
3. -Somebody wants you on the telephone. -_________ no one knows I'm here.
A. For B. And C. But D. So
「解析」C."有人打電話來找我"與"沒有人知道我在這里"是轉(zhuǎn)折關(guān)系,故填but.
二、利用but的轉(zhuǎn)折語境考查其他知識點即根據(jù)題干中連詞but的轉(zhuǎn)折性語境來確定相關(guān)知識點的選擇。此時尤其要注意前后相關(guān)信息的對比、對照或互為相反義。如:
1. He has made a lot of films,but _________ good ones.
A. any B. some C. few D. many
「解析」C.由于句中用了轉(zhuǎn)折連詞but,所以要填few與前面的many相對比。
2. It's hard for him playing against me. I've got nothing to play for,but for him,he needs to win so _________.
A. far B. well C. little D. badly
「解析」D.句中的badly不是表示"糟糕地",而是表示"很""非常",這樣用的badly主要與表示"想要"或"需要"的詞語或短語(如want,need,be in need of等)連用。如:Our school is badly in need of English teacher. 我們學(xué)校急需英語教師。/ He wants to buy a new car badly. 他很想買輛新車。
3. I told your friend how to get to the hotel,but perhaps I _________ have driven her there.
A. could B. must C. might D. should
「解析」D.比較:"could+have+過去分詞"的意思是"本來可以""本來應(yīng)該""本來能夠";"must+have+過去分詞"的意思是"一定已經(jīng)";"might+have+過去分詞"的意思是"本來可以""本來可能";"should+have+過去分詞"的意思是"本來應(yīng)該".根據(jù)句意,顯然只有D。
三、考查but的相關(guān)結(jié)構(gòu)或句式如考查not…but…,not only…but (also)…等句式的搭配和運用。如:
1. Between the two generations,it is often not their age,_________ their education that causes misunderstanding.
A. like B. as C. or D. but
「解析」D.題目考查not…but…的用法,其意為"不是……而是……".全句意為:兩代人之間引起的誤解往往不是他們的(不同)年齡,而是他們所受的(不同)教育。
2. Reality is not the way you wish things to be,nor the way they appear to be,_________ the way they actually are.
A. as B. or C. but D. and
「解析」C.此題也是考查not…but…結(jié)構(gòu)。全句意為:現(xiàn)實不是你想象出來的事物的狀態(tài),也不是事物表象給人的感覺,而是其本來的樣子。
四、考查連詞but與定語從句的相互干擾大家知道,在含有定語從句的復(fù)合句中,我們是不能在主句與從句之間使用并列連詞的。但是,命題者有時卻會利用連詞but與定語從句的相互干擾性來考查考生的辨別能力。如:
1. I don't mind her criticizing me,but _________ is how she does it that I object to.
A. it B. that C. this D. which
「解析」A.此題考查it is……that…這一強調(diào)句句型。句意為:我不介意她批評我,我反對的是她批評我的方式。由于句中使用了并列連詞but,所以絕對不能選D.
2. The doctor advised Vera strongly that she should take a holiday,but _________ didn't help.
A. it B. she C. which D. he
「解析」A.用it代替前面整句話的內(nèi)容。但若去掉but,則選which.
高考關(guān)于英語考試的知識點總結(jié)三
情態(tài)動詞是每年高考的熱點也是難點,每年單項填空題必考一題。考點集中在:情態(tài)動詞表示推測的基本用法及區(qū)別;情態(tài)動詞否定式的用法辨析:“情態(tài)動詞+have done”的用法區(qū)別等。
虛擬語氣在高考命題中不是重點,但是難點??键c常集中在含蓄條件句以及主語、賓語從句等特定句型中虛擬語氣的使用上,因此考生應(yīng)熟練掌握含蓄條件句中主從句的時態(tài)要求以及一些典型句型中虛擬語氣的具體形式。
虛擬語氣考點透析
考點一、虛擬語氣的基本用法
1.與現(xiàn)在事實相反的虛擬語氣,基本結(jié)構(gòu)為:主語+動詞的一般過去時(be動詞用were)+其他成分+if+should/would/could...+動詞原形+其他成分。例如:
①If it were not for the fact that she ______ sing,I would invite her to the party.
A.couldn’t B.shouldn’t C.can’t D.might not
解析 句意為:如果不是因為她不會唱歌的事實,我會邀請她來參加那次聚會的。that從句為同位語從句,描述的是事實,用陳述語氣。正確答案為C。
2.與過去事實相反的虛擬語氣,基本結(jié)構(gòu)為:主語+動詞的過去完成時+其他成分+if+should/would/could...+have done+其他成分。例如:
If the weather had been better,we could have had a picnic.But it ______ all day.
A.rained B.rains C.has rained D.is raining
解析 句意為:如果天氣好的話,我們是能夠去野餐的,但是下了一天的雨。句子前半部分陳述的是與過去事實相反的事情,所以用了虛擬語氣。“下了一天的雨”是事實,所以用陳述語氣。因為是發(fā)生在過去的事實,所以正確答案為A。
3.與將來事實相反的虛擬語氣,基本結(jié)構(gòu)為:主語+動詞的一般過去時/should do/were to do+其他成分+if+should/would/could...+動詞原形+其他成分。例如:
If I ______ plan to do anything I want to,I’d like to go to Tibet and travel through as much of it as possible.
A.would B.could C.had to D.ought to
解析 句意為:如果我能夠計劃做我想做的事情,我想去西藏并且盡可能多玩一些地方。句子描述的是與將來事實相反的事情,所以正確答案為B。
考點二、含蓄虛擬條件句
這樣的虛擬句不含有if從句,而是以but for/without/or/otherwise等引導(dǎo)的句子代替if從句,主句的謂語動詞的形式與前面虛擬語氣的基本用法相同。例如:
Thank you for all your hard work last week.I don’t think we ______ it without you.
A.can manage B.could have managed
C.could managed D.can have managed
解析 由語境可知這里要表達的意思是:如果沒有你們辛勤的工作,我們不可能處理好這件事。很顯然,這是對過去發(fā)生的事實的虛擬,所以要用could have done,故應(yīng)選B。
考點三、主從句時間不一致的虛擬條件句
在有些虛擬條件句中,主從句時間不一致,應(yīng)根據(jù)不同情況區(qū)別對待。例如:
It’s hard for me to imagine what I would be doing today if I ______ in love,at the age of seven,with the Melinda Cox Library in my hometown.
A.wouldn’t have fallen B.had not fallen
C.should fall D.were to fall
解析 句意為:如果不是我在七歲時愛上家鄉(xiāng)的Melinda Cox圖書館的話,很難想象今天的我會是什么樣子。主句描述的是與現(xiàn)在事實相反的事情,從句描述的是與過去事實相反的事情。正確答案為B。
考點四、名詞性從句中的虛擬語氣
在含有表示堅持、建議、命令、要求等含義的名詞性從句和在it做形式賓語或形式主語的復(fù)合句中,賓語補足語是necessary/strange/essential/natural/a pity/a shame等表示“驚奇、惋惜或者理應(yīng)如此”等含義時,從句中的謂語動詞需用“should+動詞原形”,其中should可以省略。例如:
—Don’t you think it necessary that he ______ to Miami but to New York?
—I agree,but the problem is ______ he has refused to.
A.will not be sent;that B.not be sent;that
C.should not be sent;what D.should not send;what
解析 問句句意為:難道你不認為必須把他送到邁阿密而不是紐約嗎?句子表示理應(yīng)如此的意思。正確答案為B。
情態(tài)動詞考點透析
考點一、情態(tài)動詞基本含義的考查
情態(tài)動詞的基本含義,一直是高考考查的重要內(nèi)容。例如:
1. The fire spread through the hotel very quickly but everyone______get out. A. had to B. would C. was able to D. could
解析:考查情態(tài)動詞的基本含義。had to:不得不; would:表示意愿或過去常常;could傾向于表示經(jīng)過長期訓(xùn)練而獲得的能力;was able to 表示經(jīng)過努力而能夠做到的事或成功地做了某事。因此,答案是C。
分析:高考對情態(tài)動詞基本含義的考查,仍然集中在常用的情態(tài)動詞上。對常用情態(tài)動詞的含義,要掌握的既準(zhǔn)確又要全面,特別是shall, should, can, may 四個常用情態(tài)動詞的含義較多,不易理解,復(fù)習(xí)時應(yīng)當(dāng)引起重視。
二、情態(tài)動詞表示推測的考查
對情態(tài)動詞表示推測的用法,是高考考查情態(tài)動詞的一個重要方面。例如:
1. Sorry, I’m late. I______have turned off the alarm clock and gone back to sleep again .
A. might B. should C. can D. will
解析:might have done : (過去)可能做過某事;shouldhave done :本應(yīng)該做某事。根據(jù)本句提供的情境I’m late 表明說話人可能把鬧鐘關(guān)上了。答案是:A。
分析:高考對表示推測的情態(tài)動詞集中在must, can, could, may, might上,準(zhǔn)確掌握它們使用的場合,是解決問題的關(guān)鍵。Must 用于肯定陳述句,表示肯定推測;can, could用于疑問或否定陳述句,表示可能性推測;may, might用于陳述句,表示可能性推測;用于否定陳述句中,can’t (不可能)的語氣比may not(可能不)強。此外,還要注意有對過去和對現(xiàn)在兩種情況的推測,對過去推測用情態(tài)動詞+have done ,對現(xiàn)在推測用情態(tài)動詞+ 動詞原形。
三、情態(tài)動詞表示虛擬的考查
情態(tài)動詞+have+過去分詞表示與過去事實上相反的情況,也是高考單項選擇題涉及到情態(tài)動詞的一個重要方面。
1. There was a lot of fun at yesterday’s party. You______come, but why didn’t you?
A. must have B. should
C. need have D. ought to have
解析:ought to have done 表示本來應(yīng)該做某事而實際沒做,should do 表示現(xiàn)在應(yīng)該做某事,與題中 at yesterday’s party 表示的時間不一致。所以選D。
分析:高考對情態(tài)動詞表示虛擬‘用法,表示與過去事實相反的情況。近幾年高考,主要側(cè)重should (not)have done 這一句式上,表示本來不該做卻做了或本來該做卻未做的事,在復(fù)習(xí)時,還應(yīng)關(guān)注其它幾種虛擬形式,如need (not)have done 表示本來需要做而未做或本來不需要而做的事等等,以做到有備無患。
考點四、情態(tài)動詞與助動詞混合考查
1.Tom ,you didn’t come to the party last night?
—I______, but I suddenly remembered I had homework to do .
A. had to B. didn’t C. was going to D. wouldn’t
解析:had to:不得不;didn’t:沒來;was going to:打算來;wouldn’t:不愿來。句意:——湯姆,昨晚你沒來參加舞會嗎?——我本打算來,但我突然記起有作業(yè)要做。But是關(guān)鍵詞,所以答案是:C。
2.Your phone number again? I______quite catch it .
—It’s 86184867.
A. didn’t B. couldn’t C. don’t D. can’t
解析:記住電話號碼并非難事,未完全聽清楚電話號碼并非能力的事,此處只是說沒有完全聽清楚電話號碼,所以,應(yīng)選A。
【精選試題】 名校模擬題及其答案
1. “I still haven’t thanked Aunt Lucy for her present.” “It’s time you _____.”
A. do B. did C. had D. would
2. If I hadn’t been lucky enough to meet you. I really _____ what I would have done.
A. don’t know B. hadn’t known
C. wasn’t knowing D. wouldn’t know
3. “I’ve told everyone about it.” “Oh, I’d rather you _____.”
A. don’t B. hadn’t
C. couldn’t D. wouldn’t
4. It has been raining for a day, but eventhough it hadn’t rained, we _____ there by tomorrow.
A. can’t get B. won’t get
C. hadn’t got D. wouldn’t get
5. “Do you know his address?” “No, I also wish I _____ where he _____.”
A. knew, live B. knew, lives
C. know, lives D. know, lived
6. “Isn’t it about time you _____ to do morning exercises?” “Yes, it is. Would you like to join us?”
A. begin B. have begun
C. began D. had begun
7. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown.
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fall
8. He hesitated for a moment before kicking the ball, otherwise he ____ a goal.
A. had scored B. scored
C. would score D. would have scored
9. If only he _______ quietly as the doctor instructed, he would not suffer so much now.
A. lies B. lay
C. had lain D. should lie
10. Without the air to hold some of the sun’sheat, the earth at night ____ for us to live.
A. would be freezing cold B. will be freezing coldly
C. would be frozen cold D. can freeze coldly
11. I forget where I read the article, or I _____ it to you now. w.w.w.k.s.5.u.c.o.m
A. will show B. would show C. am going to show D. am showing
12. “It looks as if he were drunk.” “So it does. _____.”
A. He’d better give up drinking
B. He shouldn’t have drunk so much
C. Health is more important than drink
D. I wonder why he is always doing so
13. “Mary looks hot and dry” “So _____ you if you had so high a fever.”
A. do B. are C. will D. would
14. “He will come tomorrow.” “But I’d rather he _____ the day after tomorrow.”
A. will come B. is coming
C. came D. had come
15. All the doctors in the hospital insisted that he ____ badly wounded and that he ____ at once.
A. should be; be operated on
B. were; must be operated on
C. was; should be operated
D. was; be operated on
16. ______ smoking, he would not have got cancer in the lung.
A. Was he given up B. Had he given up w.w.w.k.s.5.u.c.o.m
C. Did he give D. If he gave up
17. “I still haven’t thanked Aunt Lucy for her present.” “It’s time you _____.”
A. do B. did C. had D. would
18. “Do you know his address?” “No, I also wish I _____ where he _____.”
A. knew, live B. knew, lives w.w.w.k.s.5.u.c.o.m
C. know, lives D. know, lived
19. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown. w.w.w.k.s.5.u.c.o.m
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fall
20. Without the air to hold some of the sun’s heat, the earth at night ____ for us to live.
A. would be freezing cold B. will be freezing coldly
C. would be frozen cold D. can freeze coldly
21.________ fired, your health care and other benefits will not be immediately cut off.
A. Would you be B. Should you be
C. Could you be D. Might you be
22.You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
A. might B. need C. should D. would
23.—Excuse me. But I want to use your computer to type a report.
—You _____have my computer if you don’t take care of it .
A. shan’t B. might not C. needn’t D. shouldn’t
24. He _____ have completed his work; otherwise, he wouldn’t be enjoying himself by the seaside.
A. should B. must C. wouldn’t D. can’t
25. I ______ have been more than six years old when the accident happened.
A. shouldn’t B. couldn’t C. mustn’t D. needn’t
26. There _____ be any difficulty about passing the road test since you have practiced a lot in the driving school.
A. mustn’t B. shan’t C. shouldn’t D. needn’t
27. I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour.
A. should have been doing B. must have been doing
C. could have done D. would have done
28. — I’ve taken someone else’s green sweater by mistake.
— It ______ Harry’s. He always wears green.
A. has to be B. will be C. mustn’t be D. could be
29. — Catherine, I have cleaned the room for you.
— Thanks. You ______ it. I could manage it myself.
A. needn’t do B. needn’t have done
C. mustn’t do D. shouldn’t have done
30. — Lucy doesn’t mind lending you her dictionary.
— She _______. I’ve already borrowed one.
A. can’t B. mustn’t C. needn’t D. shouldn’t
【答案與解析】
1.
【解析】選B.It’s time you did 為 It’s time you thanked Aunt Lucy for her present 之略。按照英語語法,it’s time 后從句通常要用過去式。
2.
【解析】選A.雖然前有虛擬條件句, 后有使用了虛擬語氣的賓語,但 I don’t know 卻宜用一般現(xiàn)在時,因為 I don’t know 表述的是現(xiàn)在的真實情況,句意為“我要不是有幸遇到你,我真不知(指現(xiàn)在不知)我會做出什么蠢事來”。
3.
【解析】選B.I’d rather 后接從句時,從句謂語的時態(tài)規(guī)律是:用過去式表示現(xiàn)在或?qū)恚眠^去完成式表示過去。
4.
【解析】選A.we can’t get there by tomorrow 為客觀事實,故宜用陳述語氣。
5.
【解析】選B.第一空填 knew,因為 I wish 后的賓語從句要用虛擬語氣(即用過去式表示現(xiàn)在的想法);第二空要填lives,即用陳述語氣,因為 where he lives 是一個客觀事實,而不是 I wish 的內(nèi)容。
6.
【解析】選C.It’s time… / It’s high time… / It’s about time… 等后接從句時,從句謂語通常用過去式。
7.
【解析】選 B.此題涉及錯綜時間虛擬條件句,主句與現(xiàn)在事實相反,條件句與過去事實相反。句意為:要不是在七歲時就迷上了 Melinda Cox 圖書館,我真不能想像我如今會在做什么。
8.
【解析】8. 選 D.這是otherwise 引出的含蓄虛擬語氣,再根據(jù)前面的 hesitated 可進一步知道這是與過去事實相反的虛擬語氣,由此可推知答案選 D.
9.
【解析】選 C.if only意為“要是……就好了”,其后的句子謂語要用虛擬語氣,同時根據(jù) as the doctor instructed 中的過去時態(tài)可知從句是與過去事實相反,故選 C.
10.
【解析】選 A.without 引出的介詞短語為一個與現(xiàn)在事實相反的含蓄條件句。
【答案】C
11.
【解析】.根據(jù)上文的語境可知句中的 or 隱含有一個虛擬的條件,即 or=if I didn’t forget where I read the article(要是我沒忘記我在哪兒讀過這篇文章的話——但事實上忘了)。
【答案】B
12.
【解析】關(guān)鍵信息是It looks as if he were drunk 中的虛擬語氣,句子既然用了虛擬語氣,也就是說,“他喝醉了”不是事實,只是他的言行好像是醉了,所以此題的答案是D.
【答案】 D.
13.
【解析】 由于空格后的 if 條件狀語從句的謂語用的是虛擬語氣(這是很重要的信息),所以主句要用 would 而不用 will,即答案應(yīng)選D.
【答案】D
14.
【解析】按照英語習(xí)慣,would rather 后接that 從句時,從句謂語通常要用虛擬語氣,即用過去式表示現(xiàn)在或?qū)恚? 用過去完成時表示過去。
【答案】C
15.
【解析】insist后的從句謂語有時用“should+動詞原形”這樣的虛擬語氣,有時不用,具體要看該謂語動詞所表示的含義。一般說來,若該謂語動詞所表示的動作尚未發(fā)生,或尚未成為事實,則用虛擬語氣;若該謂語動詞所表示的動作已經(jīng)發(fā)生,或已經(jīng)成為事實,則要用陳述語氣。分析上題的句意,可知只有選D最合適。
【答案】D
16.
【解析】是因為時態(tài)前后有矛盾。由于主句謂語是would not have got,這表明是對過去事實作出的假設(shè),所以從句謂語應(yīng)該是 had given up,而不是像D項那樣用一般過去時。另外,當(dāng)虛擬條件句中有 had, should, were 等詞時,通??梢允÷?if,并將 had, should, were 提前置于句首。
【答案】B
17.
【解析】It’s time you did 為 It’s time you thanked Aunt Lucy for her present 之略。按照英語語法,it’s time 后從句通常要用過去式。
【答案】B
18.
【解析】第一空填 knew,因為 I wish 后的賓語從句要用虛擬語氣(即用過去式表示現(xiàn)在的想法);第二空要填lives,即用陳述語氣,因為 where he lives 是一個客觀事實,而不是 I wish 的內(nèi)容。
【答案】B
19.
【解析】 此題涉及錯綜時間虛擬條件句,主句與現(xiàn)在事實相反,條件句與過去事實相反。句意為:要不是在七歲時就迷上了 Melinda Cox 圖書館,我真不能想像我如今會在做什么。
【答案】B
20.
【解析】without 引出的介詞短語為一個與現(xiàn)在事實相反的含蓄條件句。
【答案】A
21.
【解析】句意:萬一你被解雇,給你的醫(yī)療救助和其它方面的福利也不會被取消。
【答案】B
22.
【解析】句意:你想象不到這么一個表現(xiàn)良好的紳士竟然會對一個女士這么粗魯。
【答案】C
23.
【解析】shall此處表示“警告”。
【答案】A
24.
【解析】B此處考查情態(tài)動詞表示推測的用法。should have done表示過去應(yīng)該做而實際并沒有做,因此淘汰A項。would不用來表推測,因此淘汰C項。B基與D項雖然都可以表示推測,但B項表肯定意義而D項表示否定推測,意為“不可能”,根據(jù)句意:他肯定已完成了他的工作;不然,他就不會在海邊玩得那么愉快了。可知此處需要肯定意義,因此淘汰D項。
25.
【解析】B本題考查情態(tài)動詞的用法。must表示推測只能用于肯定句,否定句用can或could 代替。shouldn’t have done 表示“本來不該而實際上卻做了某事”.needn’t have done表示“本來不必而實際上卻做了”均不合題意。本句的意思是:當(dāng)事故發(fā)生時我不可能超過6歲。
26.
【解析】C should(按道理)應(yīng)該;句意:既然你在駕校時做了大量練習(xí),那么通過這次考試理不應(yīng)該有困難。
27.
【解析】B 第一句話使用了一般過去時,由此可知第二句話是對過去事情的猜測,需用must have done.本題意為“我正在高速公路上行駛,這時一輛警車跟隨著著這輛車從旁邊經(jīng)過。它們一定是以至少每小時150公里的速度行駛。”故選B。A項表示“本應(yīng)該……”,C項表示“本能夠……”不合題意。
28.
【解析】D 本題考查情態(tài)動詞的用法。句意是“我錯拿了別人的綠色 毛衣”,“那可能是Harry的,他總是穿綠色的毛衣”。四個選項中could表示推測。mustn’t 表示 “禁止”;has to 表示“不得不”;will 表推測時,表“肯定“語氣太強。
29.
【解析】B根據(jù)句意可知Catherine對對方為她打掃了房間表示感謝并提到對方本來不必為她打掃房間。很顯然對方打掃房間是過去所為,表達“去不必做某事”用needn’t have done sth.
30.
【解析】C本題考查情態(tài)動詞,從答語的后半句“我已經(jīng)借到一本字典了”,可知前半句為“不必了”。故C正確。
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