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UNIT 1 SCIENCE AND SCIENTISTS單元精講精練課件-人教版選擇性必修第二冊

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  1. 二一教育資源

UNIT 1 SCIENCE AND SCIENTISTS單元精講精練課件-人教版選擇性必修第二冊

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(共59張PPT)
Snow subscribed to the second theory.斯諾贊同第二種理論。 (教材P2)
情景導學
He subscribes to the village school.他定期給這所鄉村學校捐款。
I guessed they wished to subscribe to the newspaper.我猜他們想訂閱這份報紙。
Employees subscribed for far more shares than were available.員工認購的股份遠遠超出實際可
認購的額度。
高頻詞匯 情境破
高頻詞匯精講
詞匯 1 subscribe vi.認購(股份);定期訂購;定期交納(會費);定期捐助
用法歸納
①subscribe    同意,贊同;訂閱,訂購;定期交納(會員費);定期捐款
②subscribe    認購(股份)
詞匯拓展
①subscription n. (報刊等的)訂閱費,訂購款,訂閱,訂購;定期捐款;會員費
take out a subscription to...訂閱……
cancel/renew a subscription退訂/續訂
a(n) annual/yearly subscription年度訂閱
②subscriber n. (報刊的)訂閱人,訂戶;定期捐助者;消費者;用戶
a subscriber/subscribers to...……的用戶/訂戶
I have been a subscriber to China Daily for many years.我多年來一直是《中國日報》的訂
戶。
to
for
Snow suspected that the water pump was to blame.斯諾懷疑水泵是罪魁禍首。 (教材P2)
情景導學
I don't trust her—I suspect that she's a bit two-faced.我不信任她——我覺得她有點言行不一。
It was perfectly all right, he said, because the police hadn't suspected him of anything.他說什么
事都沒有,因為警察一點兒也沒懷疑到他。
The young man ran out of the supermarket in panic, so the police suspected him to be a thief.那個
年輕人驚慌失措地跑出了超市,因此警察懷疑他是個小偷。
詞匯 2 suspect vt. & vi.懷疑;疑有;不信任 n.犯罪嫌疑人;可疑對象 adj.不可信的,靠不住的;可疑的
用法歸納
①suspect that...懷疑/覺得……
②suspect sb.    (doing) sth.懷疑某人(做)某事
③suspect sb.    ...懷疑某人是……
④a murder suspect殺人嫌疑犯
⑤a suspect package可疑包裹
詞匯拓展
suspected adj.被懷疑的
suspected terrorists嫌疑恐怖分子
of
to be
suspect 指猜疑、疑心,常譯為“疑有,覺得”,懷疑其有
doubt 多指因證據不足或僅憑證據還不能肯定而產生懷疑,懷疑其無
易混辨析
I suspect that she is the criminal.我覺得她是罪犯。
I doubt that she is the criminal.我認為她未必是罪犯。
Snow suspected that the water pump was to blame.斯諾懷疑水泵是罪魁禍首。(教材P2)
情景導學
Once you form the habit of blaming somebody else for a bad situation, you are a loser.一旦你養
成把不好的情況歸咎于其他人的習慣,你就是一個失敗者。
The researchers say that if you are not satisfied with the shape of your nose, blame it on climate,
not your parents.研究人員說,如果你對自己鼻子的形狀不滿意,那就怪氣候,而不是你的父
母。
Lots of people find it hard to get up in the morning and put the blame on the alarm clock.很多人
發現早上很難起床并把責任推到鬧鐘上。
詞匯 3 blame vt.把……歸咎于;責怪;指責 n.責備;指責
用法歸納
①be to blame (for sth.) (對某事)負有責任
②blame sb./sth.    sth.把某事歸咎于某人/某物
③blame sth.    sb./sth.把某事歸咎于某人/某物
④take/accept/shoulder the blame for...為……承擔責任
⑤lay/put the blame    ...歸咎于……
特別提醒
sb.+be to blame (for sth.)意為“某人(對某事)負有責任”,其中不定式用主動形式表示被動含
義。
This time, humans will be to blame.這一次,人類將是罪魁禍首。
for
on
on
Moreover, Snow was later able to show a link between other cases of cholera and the differ-ent
water companies in London.此外,斯諾后來證明了另外幾起霍亂病例與倫敦不同的自來水
公司之間有聯系。 (教材P3)
情景導學
The company in our city has a link with those big investors from the West.我們市的這家公司與
西方的那些大投資者有聯系。
The study tries to explain why there is a link between engaging in the arts and living longer.這項
研究試圖解釋為什么從事藝術和長壽之間有聯系。
The Shenzhou ⅩⅤⅡ manned spacecraft and the front port of the Tianhe core module linked up
in orbit on October 26th.10月26日,神舟十七號載人飛船與天和核心艙前向端口在軌道上對接。
詞匯 4 link n.聯系;紐帶 vt.把……連接起來;相關聯
When you sleep, your brain sorts through everything that happened during the day, trying to link
new experiences to old memories.當你睡覺時,你的大腦會整理白天發生的一切,試圖將新經歷
與舊記憶聯系起來。(2021北京)
用法歸納
①a link between...   ... ……與……之間的聯系
②have a link    ...與……有聯系
③link...   /with...把……與……連
接/聯系起來(被動語態為“...be linked    /with...”)
④link    (with...)(與……)連接;(與……)結合
and
with
to
to
up
Through Snow's tireless efforts, water companies began to sell clean water, and the threat of
cholera around the world saw a substantial decrease.在斯諾的不懈努力下,自來水公司開始銷售
干凈的水,世界各地霍亂的威脅大幅減少。 (教材P3)
情景導學
There has been a decrease in traffic accidents.交通事故減少了。
To our delight, nowadays the number of cyclists going through red lights is on the decrease.令我
們高興的是,如今騎自行車闖紅燈的人數正在減少。
The greenhouse gas emissions have decreased by 4% by now.到目前為止,溫室氣體排放量已經
減少了4%。
詞匯 5 decrease n.減少;降低;減少量 vt.& vi.(使大小、數量等)減少;減小;降低
Due to the adoption of appropriate epidemic prevention measures, the number of infected people
in this area has decreased (from thirty) to zero.由于采取了恰當的防疫措施,這個區域的感染人
數已經(從三十)減少到了零。
用法歸納
①   the decrease 在減少;在衰減;在降低
②a decrease    /of...……的減少
③decrease    ... 減少/降低了……
④decrease (from...)    ...(從……)減少/降低到……
on
in
by
to

詞匯拓展
increase v. (使)增長,增多;增加 n.增長;增多;增加
increase (from...) to...(從……)增加到……
increase by...增加了……
on the increase在增長/增加
The country’s industrial output increased by 4% last year.去年,這個國家的工業產量增加了4%。
情景助記
Fortunately, we now know how to prevent cholera, thanks to the work of John Snow.幸運的
是,由于約翰·斯諾的努力,我們現在知道了如何預防霍亂。 (教材P3)
詞匯拓展
①thanks to sb. for sth.因某事感謝某人
How can I ever express my thanks to you for all you've done 對你所做的一切,我怎么才能表
達謝意
②no thanks to sb./sth.雖然;并非由于;不歸功于
③thanks a lot多謝
④表示“由于;因為”的短語還有because of、due to、owing to、as a result of、on account of
等。
詞匯 6 thanks to 幸虧;由于
The flight was postponed on account of bad weather.因為天氣惡劣,航班推遲了。
They worked day and night and their health began to suffer because of the poor conditions, but
they never gave up.他們夜以繼日地工作,由于惡劣的條件,他們的健康狀況開始變差,但他們
從未放棄。
Short writings missed as a result of an excused absence will be accepted.因故缺席而錯過提交
時間的短論文可以接受。 (2022新高考Ⅰ)
Owing to heavy traffic jams, many people would like to choose the Underground in preference
to driving.由于嚴重的交通堵塞,許多人愿意選擇地鐵,而不是開車。
Her good health is chiefly due to proper diet and regular exercise.她良好的健康狀況主要是因
為恰當的飲食和經常鍛煉。 (寫作·健康生活)
Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases.
此外,通過使用地圖和統計數據,斯諾改變了科學家研究疾病的方式。(教材P3)
情景導學
It can be transformed from an ordinary shell into a finely carved artwork in a master's hands.在大
師的手中,它可以從一個普通的貝殼變成一件雕刻精美的藝術品。
用法歸納
transform sth./sb. (   ...)   ...把某物/某人(從……)變成……[被動語態sth./sb.+be
transformed (   ...)   ...]
詞匯 7 transform vt.使改觀;使改變形態 vi.改變;轉變
from
into
from
into
詞匯拓展
transformation n.改變;轉變;改觀
The way in which we work has undergone a complete transformation in the past decade.在過
去的十年里,我們的工作方式經歷了徹底的變革。 (寫作·科技進步和社會發展)
特別提醒
前綴trans-表示“轉移、變化、超過、橫穿”等。如transport運輸(從一地轉到另一地),trans-
plant移植,transcontinental橫貫大陸的。
However, after the Songhu Battle broke out in 1932...不過,1932年淞滬會戰爆發后……
(教材P7)
詞匯拓展
①break away (from...)突然掙脫……;脫離……;甩掉……
The company wants to break away from its downmarket image.這個公司想擺脫它面向低消
費階層的形象。
②break down破壞,消除;(機器、車輛等)出故障;(身體等)垮掉;情不自禁地哭起來;使分解
Getting the teenagers together will help to break down the barriers between them.把青少年聚
集起來有助于消除他們之間的隔閡。
③break through取得突破;沖破
詞匯 8 break out (戰爭、打斗等不愉快的事情)突然開始;爆發
Scientists think they are beginning to break through in the fight against cancer.科學家認為他
們在對抗癌癥方面開始有所突破。
④break up解散;結束;拆開;粉碎;破碎
Unfortunately, the band consisting of a singer, two guitarists and a drummer broke up soon.不
幸的是,這個由一名歌手、兩名吉他手和一名鼓手組成的樂隊很快解散了。
⑤break in破門而入;打斷
Thieves had broken in while we were away.我們不在家時,小偷闖進屋里了。
⑥break into強行闖入;突然開始(笑、唱等)
Ryan really had made a difference to these children. He broke into a joyful smile.瑞安確實對
這些孩子產生了影響。他突然露出快樂的笑容。
⑦break off折斷;中斷;突然終止
Let's break off for a few minutes and have some water.咱們暫停幾分鐘喝點水吧。
...Qian made the decision to switch his major to aviation because he realised that China
needed its own powerful air force to protect and defend the country.……錢學森意識到中國需要
自己的強大的空軍來保衛國家,因此他決定改學航空專業。 (教材P7)
情景導學
The movie The Battle at Lake Changjin describes a battle to aid North Korea and defend our
country from/against possible danger.電影《長津湖》描述了一場援助朝鮮并保衛我國免遭可
能的危險的戰役。
用法歸納
defend...   ...保護……免受……的攻擊/傷害;為……辯護/辯解,反駁……
詞匯 9 defend vt.保衛;防守;辯解
from/against
詞匯拓展
①defence(defense) n.保衛;辯護;防守
in defence of...為了保衛……;為……辯護(=in sb.'s/sth.'s defence)
come to sb.'s defence為某人辯護
I have to say in defence of the boy that he actually didn't break the school rule.
=I have to come to the boy's defence, saying that he actually didn't break the school rule.我不得
不為這個男孩辯護,說他實際上沒有違反學校規定。
②defensive adj.防御的;自衛的;戒備的
After spending some time looking at all the defensive equipment at the wall, we decided it was
time for some action.在花了一些時間看墻上所有的防御設施后,我們決定是時候采取一些行
動了。 (2021全國甲)
As a graduate assistant at the California Institute of Technology during the 1930s, Qian
helped conduct important research into rocket propulsion...二十世紀三十年代在加州理工學院
擔任研究生助理時,錢學森協助開展了火箭推進方面的重要研究工作…… (教材P7)
情景導學
The expert used to leave much of the work to his research assistant.這位專家曾把許多工作都交
給他的研究助理。
用法歸納
①research assistant     
②assistant manager協理;副經理
詞匯 10 assistant n.助理;助手 adj.助理的;副的
研究助理
詞匯拓展
①assist v.幫助;協助;援助
assist sb. in doing sth./assist sb. to do sth.幫助某人做某事
assist (sb.) in/with sth.幫助/協助(某人)某事
I love doing housework. I always assist my parents in doing the dishes after meals.我喜歡做家
務。我總是在飯后幫父母洗碗。 (2021全國乙)
②assistance n.幫助;支持;援助
with the assistance of...在……的幫助下
be of assistance有幫助;能幫上忙
come to one's assistance來幫助某人
Despite his cries, no one came to his assistance.盡管他喊叫,但沒有人來幫助他。
With the assistance of social media apps, we can now get to know more people.在社交媒體應
用軟件的幫助下,現在我們可以認識更多的人。
He received a hero's welcome from his homeland and was put in charge of not only develop-
ing China's rocket science but also its space and missile programme.他受到了來自祖國的英雄
般的歡迎,受命發展中國的火箭科學以及航天和導彈項目。 (教材P8)
詞匯拓展
①in charge負責;掌管(常作后置定語)
If you have other questions about this speech contest, please call our office and look for the
person in charge.如果你對本次演講比賽有其他問題,請致電我們的辦公室尋找負責人。
(寫作·通知結尾)
②in the charge of...由……負責/掌管(=in one's charge)
Some activities were in the charge of students themselves.一些活動由學生自己負責。
詞匯 11 in charge of 主管;掌管
③take charge of...負責……;掌管……
To become a great leader, we must first take charge of ourselves.要想成為偉大的領袖,我們必
須首先掌控我們自身。
④in/under one's charge由某人照料
⑤free of charge免費
The leaflet is available free of charge from post office.小冊子可以免費向郵局索取。
⑥charge (sb.) (some money) for sth.因某物(向某人)收費
The hotel charged us 530 yuan for accommodations.這家酒店收了我們530元的住宿費。
⑦charge sb. with (doing) sth.控告/起訴某人(做)某事
After the accident, people charged her with neglecting her duty.事故發生后,人們指控她玩忽
職守。
特別提醒
be in charge of前多以人作主語,指“某人負責/掌管某事”;be in the charge of前多以物作主
語,指“某事/物由某人負責/掌管”。類似的還有be in possession of、be in the possession
of、be in control of、be in the control of等。
Besides being brilliant, he was brave...除了才華橫溢之外,他還勇敢…… (教材P9)
易混辨析
詞匯 12 besides prep.除……之外(還) adv.而且;此外
except (用于所言不包括的人或事物前)除……之外,強調所排除的、不包括在內的,一般表示同類之間的關系
except for 除……之外,其后的內容與句子的主語往往不是同一類的;常對細節加以修正,含有美中不足之意
besides 除……之外(還),除去的部分也包含在整體內;還可作副詞,意為“此外”
apart/aside from 具有besides(介詞)、except以及except for的用法
in addition 此外,用法與副詞besides類似
in addition to 除……之外(還),用法與介詞besides類似
特別提醒
except有時可替換為except for,句意不變。但當用于句首時,不能用except,只能用except for。
Except for me, everyone passed the exam.除了我,大家都通過了考試。
The question was so difficult that nobody could come up with a good answer except Tom.這個
問題太難了,除了湯姆,沒有人能想出好答案。
Your article is good except for a few spelling mistakes.你的文章(寫得)不錯,只是有幾處拼寫
錯誤。
Apart/Aside from the opening and closing ceremonies and some key matches, the ticket prices
will be acceptable to ordinary people.除了開幕式和閉幕式以及一些關鍵比賽之外,票價對普
通人來說是可以接受的。
詞匯 釋義 用法& 拓展
severe adj.極為惡劣的;十分嚴重的;
嚴厲的 severely adv.嚴重地;嚴厲地;
嚴格地
frustrated adj.懊惱的;沮喪的;失意的 frustrate v.使懊喪;使懊惱;使沮喪 
frustrating adj.令人懊惱的;令人沮喪的 frustra-tion n.懊惱
I bit back my frustration.我強忍住懊惱。(2022新高考Ⅰ)
高頻詞匯積累
infect vt.使感染;傳染;影響(生義) She infected the children with her enthusiasm for music.她用她對音樂的熱情影響了孩子們。
infection n.感染;傳染
handle n.把手;拉手;柄 vt.處理;搬
動;操縱(車輛、動物、工具等);買,賣(生義) They were arrested for han-dling stolen goods.
他們因買賣贓物而遭逮捕。
handle the actual reservations處理實際預訂(2023浙江1月)
pure adj.干凈的;純的;純粹的 pure gold/silk純金/真絲pure water純凈水(2023新課標Ⅰ)
purely adv.純粹地;完全;僅僅
initial adj.最初的;開始的;第一的 initially adv.開始;最初;起初
cast vt.(cast, cast)投射;向……投以 (視線、笑容等);投擲;使人懷疑 cast a look/glance at...看/瞅……一眼
cast a shadow投下一片影子
shadow n.陰影;影子;背光處 v.跟蹤;投陰影于(生義) in someone else’s shadow在其他人的陰影下(2020天津)
shade n.陰涼處,背陰處
pour v.倒出;傾瀉;斟(飲料);下大
雨;不斷涌向(或涌現) pour in 大量涌入
pour out傾訴;倒出;大量涌出
outstanding adj.優秀的;杰出的;明顯的 an outstanding player杰出的運動員
outstandingly adv.非常,極其
gifted adj.有天賦的;有天才的;天資
聰慧的 be gifted in (doing)...在(做)……方面有天賦
gift n.天賦;禮物;贈品
have a gift/talent for...有……的天賦
abstract adj.抽象的;理論上的 n.(文獻等的)摘要;抽象藝術作品 v.提取,分離 abstractly adv.抽象地
think abstractly抽象地思考
steady adj.穩定的;平穩的;穩步的 steadily adv.穩定地;穩步地
brilliant adj.聰穎的;絕妙的;明亮的 brilliant sunshine明媚的陽光
a brilliant idea一個絕妙的主意(2023新課標Ⅰ)
brilliantly adv.絕妙地;非常成功地;燦爛地
brilliance n.光彩;(色彩)鮮明;非凡的才能
above all 最重要的是;尤其是 after all畢竟;別忘了
in all總共;共計
(not) at all根本(不);完全(不)
fault n.弱點;過錯 find fault (with sb./sth.)找茬兒;挑錯;批評;挑剔
shift n.改變;轉換;輪班 vi.& vt.轉移;挪動;轉向 shift from...to...由/從……向……轉移/轉變
the day/night shift日/夜班
vivid adj.生動的;鮮明的;豐富的 a fine and vivid description 細膩且生動的描述(2020新高考Ⅰ)
vividly adv.生動地
vividness n.生動;逼真;鮮明
He discovered that in two particular streets the cholera outbreak was so severe that more
than 500 people died in ten days.他發現在兩條特殊的街道上霍亂的暴發如此嚴重以至于在十
天內就有五百多人死亡。 (教材P2)
情景導學
The disagreement was so sharp that neither he nor I knew how to settle it.分歧如此尖銳,以至于
他和我都不知道怎么解決。 (2022全國甲)
The teacher spoke so slowly that most of us could follow him.老師講得很慢,我們多數人都能夠
聽明白他的話。
It was so cold a day that nobody was in the street.天氣很冷,街上一個人也沒有。
經典結構 情境破
結構 1 so...that...引導結果狀語從句
There are so many people that he has to force his way through them.人太多了,他不得不強行穿
過他們。 (讀后續寫·動作描寫)
There is no need to worry. You've done so much schoolwork that you are sure to pass the exam.
沒有必要擔心。你做了這么多功課,一定能通過考試。
用法歸納
  so...that...結構中的so是副詞,常常用來修飾形容詞或副詞,常用句式:
①so+   /   +that...
②so+adj.+   +    +that...
③so+   /few+可數名詞復數+that...
④so+   /little(少)+不可數名詞+that...
adj.
adv.
a/an
可數名詞單數
many
much
結構拓展
①such...that...“如此……以至于……”也可引導結果狀語從句,常用句式:
such+a/an+adj.+可數名詞單數+that...
such+adj.+可數名詞復數/不可數名詞+that...
They are such good students that the teacher likes them very much.他們是如此優秀的學生,以
至于老師非常喜歡他們。
②so that既可以引導目的狀語從句(意為“為了,以便”,常與情態動詞連用),又可以引導結果
狀語從句(意為“所以,因此”)。
I spoke loudly, so that all the students heard me clearly.我說話聲音很大,因此所有學生都清
楚地聽到了。(結果)
I will speak loudly so that all the students can hear me clearly.我將大聲說話以便所有的學生
都能聽清楚我說的話。(目的)
③in order that引導目的狀語從句,相當于so as to(不能置于句首)/in order to。
At the debate, members from the committee exchanged their views in order that they could im-
prove their learning style(= in order to/so as to improve their learning style).在辯論中,委員會成
員交換了意見,以改進他們的學習方式。
特別提醒
當名詞前有many、much、few、little(意為“少的”而不是“小的”)修飾時,要用“so...
that...”而不能用“such...that...”。
Many scientists subscribe to the view that it is human activity that has caused global warm-
ing.許多科學家贊同這樣的觀點:是人類活動導致了全球變暖。 (教材P4)
情景導學
It was Tom that/who told her the exciting news yesterday.昨天是湯姆告訴了她這個令人興奮的
消息。(強調主語)
→Was it Tom that/who told her the exciting news yesterday 昨天是湯姆告訴了她這個令人興
奮的消息嗎 (一般疑問句式)
→Who was it that told her the exciting news yesterday 昨天是誰告訴她這個令人興奮的消息
的 (特殊疑問句式)
It was an old magazine that Mary found in the bag.瑪麗在包里找到的是一本舊雜志。(強調賓語)
結構 2 It is...that... 強調句型
→Was it an old magazine that Mary found in the bag 瑪麗在包里找到的是一本舊雜志嗎 (一
般疑問句式)
→What was it that Mary found in the bag 瑪麗在包里找到的是什么 (特殊疑問句式)
It was in the supermarket that we met each other for the first time.就是在這個超市里我們第一
次遇見了彼此。(強調地點狀語)
→Was it in the supermarket that you met each other for the first time 你們是在這個超市里第一
次遇見彼此的嗎 (一般疑問句式)
→Where was it that you met each other for the first time 你們是在哪兒第一次遇見彼此的 (特
殊疑問句式)
It was not until twelve o'clock that he went to bed last night.昨天晚上他一直到十二點才睡。
(對not...until...的強調)
→Was it not until twelve o'clock that he went to bed last night 昨天晚上他一直到十二點才睡
嗎 (一般疑問句式)
→When was it that he went to bed last night 昨天晚上他是何時去睡的 (特殊疑問句式)
用法歸納
①強調句型基本結構:
陳述句式:It is/was+被強調部分+that/who+句子其余部分.
一般疑問句式:Is/Was it+被強調部分+that/who+句子其余部分
特殊疑問句式:    +is/was it+that+句子其余部分
對not...until...的強調:It is/was not until+被強調部分+that+句子其余部分.
②被強調的部分可以是主語、   、   。當被強調的部分指人時,既可用that,也可用
特殊疑問詞
賓語
狀語
   。指物時只能用that。
特別提醒
①強調句型的判斷:將強調句結構中的It is/was和that/who去掉,如果句子剩下的部分不缺少
任何成分,語序稍加調整后仍是一個完整的句子,這個句子就是強調句,否則就不是強調句。
②主謂一致:被強調的部分如果是句子的主語,that/who之后的謂語動詞在人稱和數上應與被
強調的主語保持一致。
who
Sentence 1
譯文 霍亂曾經是世界上最令人恐懼的疾病之一,直到一位英國醫生約翰·斯諾(向人們)展示
了如何戰勝它。
長難句 圖解
時間
賓語
Sentence 2
譯文 這位女士似乎非常喜歡從水泵抽上來的水,每天都讓人(從那里)打水運到家里來。
主語
結果
Sentence 3
譯文 錢學森備受人們的尊敬,《錢學森的故事》一書的作者稱他為一位具有“偉大科學思
想和科學精神”的人,并且他熱愛祖國,用努力、成就和奉獻來為祖國服務。
定語
謂語
Sentence 4
譯文 不過,1932年淞滬會戰爆發后,錢學森決定改學航空專業,因為他意識到中國需要自己
的強大的空軍來保衛國家。
時間
原因
賓語
Sentence 5
譯文 他愿意說別人不敢說的話,愿意做別人不敢做的夢。
賓語
賓語
表語從句
一、表語從句的定義
在句中充當表語的從句叫表語從句,它位于系動詞之后。可以接表語從句的系動詞有be、
look、remain、seem等。
二、引導表語從句的從屬連詞的用法
情景導學
The problem is whether the air pollution can be controlled.問題是空氣污染能否被控制住。
Private jet pilots are still needed. That is because the rich are continuing to travel as much as be-
fore.私人噴氣式飛機駕駛員仍然被需要。那是因為富人在繼續像以前一樣頻繁地旅行。
The amazing thing about the hot spring is that the lower the temperature gets, the hotter it is!這個
必備語法 情景破
溫泉的神奇之處在于,(周圍環境的)溫度越低,它越熱!
用法歸納
  引導表語從句的從屬連詞that、whether、because、as if/though在從句中不作成分,其中
①   無詞義,但不能省略;because后接表示原因的句子;whether表示“②   ”;as if/
though表示“好像”。
三、引導表語從句的連接代詞的用法
情景導學
The puzzle is who got close to the dying patient.難題是誰接近過那個臨終的病人。
This is what they do at most banks and fast-food restaurants.這就是他們在大多數銀行和快餐店
做的事情。
The question is whose car is the most expensive.問題是誰的車是最貴的。
that
是否
用法歸納
  連接代詞引導表語從句時,除了起連接作用外,還可以在從句中充當③   、④ 
、定語和表語,本身具有詞義。常見的連接代詞有what、which、who、whose、whom、
whoever、whatever、whichever等。
四、引導表語從句的連接副詞的用法
情景導學
The point is when we can find the solution to the problem.關鍵是我們何時能找到解決這個問
題的方法。
Scientists think that the continents weren't where they are today.科學家們認為,過去的大陸并不
在現在所處的位置上。
The discussion is how we can solve the problem.討論內容是我們如何才能解決這個問題。
主語
賓語
用法歸納
  連接副詞引導表語從句時,除了起連接作用外,還可以在從句中充當⑤   ,本身具有
詞義。常見的連接副詞有when、where、why、how。
五、表語從句中的虛擬語氣
情景導學1
My suggestion is that we (should) adopt a more flexible approach.我的建議是我們應該采用一
種更靈活的方法。
The request is that every student (should) donate one or two books.要求是每位學生捐一兩本
書。
用法歸納1
  當主句的主語是advice、suggestion、order、command、request、requirement等表示建
狀語
議、命令或要求的名詞時,表語從句中常用虛擬語氣,即從句謂語用“⑥       ”
的形式,其中should可以省略。
情景導學2
She looks as if she were ten years younger.她看起來仿佛年輕了十歲。
It seemed as if he had traveled to space.他好像去太空旅游過。
It looks as if it's going to rain.天看上去好像要下雨。
用法歸納2
當表語從句的引導詞是as if或as though時,后面的表語從句如果表示假設的情況,需使用虛擬
語氣:用⑦      表示與現在的事實相反;用⑧      表
示與過去的事實相反;用“would/could/might+動詞原形”表示與將來的事實相反。如果表
示事實或很可能發生的事,則不用虛擬語氣。
should+動詞原形
一般過去時
過去完成時
六、其他需注意的問題
情景導學
He did not go to the cinema last night. That was because he had to help his sister with her home-
work.昨天晚上他沒有去看電影,那是因為他得幫助他的妹妹做作業。
Tom overslept this morning, and that was why he was late for work.湯姆今天早晨睡過了頭,那
就是他上班遲到的原因。
用法歸納
  this/that is/was why后面接的內容表示⑨   ,翻譯為“這/那是……的原因”;this/that
is/was because后面接的內容表示⑩   ,翻譯為“這/那是因為……”。
結果
原因
即時鞏固
Ⅰ.單句語法填空
1.(2021新高考Ⅰ)Rome can be pricey for travelers, which is      many choose to stay in
a hostel(旅社).
2.(2020全國Ⅱ)The good news is      it's simple to learn and can be worth the effort.
3.(2020天津)Making a full-length clay(黏土) figure would not exhaust my strength—and that is
     I intend to do!
4.The problem is      should be responsible for the task.
5.As Professor Scotti often puts it, success is      high you jump when you hit the bottom.
6.My car broke down on my way to work. That was      I was late for work this morning.
7.You just assume I want to be a lawyer, but that's only      you are a lawyer.
why
that
what
who
how
why
because
8.My question is      he is going to the party or not.
9.The first time we had dinner together was      we were visiting the Great Wall.
10.Reading this book made me feel as if I      (travel) to the mysterious land and
talked with the wise man.
Ⅱ.完成句子
1.我的建議是你在學校應該積極參與這些討論。
My advice is                            these discussions at
school.
2.他沒有被重點大學錄取的原因是他學習不夠努力。
The reason why he was not admitted into a key university was               
enough.
whether
when
had travel(l)ed
that you should participate actively in
that he didn't study hard
3.我們可以說的是,文化和烹飪息息相關。
What we can say is                  hand in hand.
4.他以前看過這部電影。那就是為什么他昨晚沒有看。
He had seen the film before. That was                      last
night.
5.我的大消息是,我們都在考慮寒假去中國旅行。
My big news is                      _______
going on a trip to China in the winter vacation.
6.當我還是個小孩子的時候,春節期間的紅包是我最期待的。
When I was a little child, the red packet during the Spring Festival was          
  most.
that culture and cuisine go
why he didn't see it
that we're all thinking about/that we are all considering
what I expected
7.事實是他已經失去了參加比賽的機會。
The fact is                 to take part in the competi-tion.
that he has lost the chance

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