1、Unit4Unit4AstronomyAstronomy： the the science of the stars science of the stars Part1 必修三根據(jù)語境猜詞義(1) Fruit juices can be_harmful_to childrens teeth. (2) Many households products are potentially harmful. 1、 harmful adj.根據(jù)語義找匹配：A. 有害的B. 危害 (1) A(2) B 1、 harmful adj.harm n. 傷害； 損害 vt. 傷害； 損害 harmless ad

2、j. 無害的； 無惡意的 鏈接do sb. harm do harm to sb. 對某人有害be harmful to 對有害短語 It does no harm to do sth. /There is no harm (in) doing sth. 不妨做某事 It wouldnt do sb. any harm to do sth. 做某事對某人并無害處 No harm done! (對別人做錯事的一種勸慰) 沒事兒！ 不要緊！句型1、 harmful adj.單詞拼寫(1) Your smoking may be harmful (有害) to the health of your

3、baby. (2) The storm has done great harm (有害) to the crops. (3) The dog seems fierce, but actually hes harmless. 1、 harmful adj.2、prevent v.根據(jù)語境猜詞義(1) The heavy rain prevented us (from) going to school. (2) They have been prevented by the traffic jam from going there on time. 根據(jù)語義找匹配：A. 阻礙 B. 阻止 (1)

4、B(2) A 2、prevent v.“阻止某人做某事”的幾種表達(dá)式：ban sb. from doing sth. stop sb. (from) doing sth.keep sb. from doing sth. 鏈接 單項填空 ()(1) We must take firm and efficient measures to prevent pollution _our life even better. A. to make B. making C. make D. against making2、prevent v. A考查非謂語動詞的使用。本題的語義是： 為了使我們的生活更加美好

5、，我們必須采取果斷而卓有成效的措施阻止污染。根據(jù)語境非謂語動詞在本句是目的狀語，所以答案是A。本題極容易造成學(xué)生們的思維定勢而誤選B。2、prevent v. ()(2) Well spare no effort to prevent the river _. A. from polluting B. polluting C. being polluted D. polluted2、prevent v. C考查非謂語動詞的使用。本題的語義是：我們將不遺余力地阻止河流污染。根據(jù)語境河流與污染形成了被動關(guān)系，所以答案是C。 3、develop v.根據(jù)語境猜詞義(1) We should deve

6、lop the habit of reading, because reading can develop the mind. (2) Shanghai has developed into a commercial center of our country. (3) We must develop many more new products in order to satisfy the demands of market. 根據(jù)語義找匹配：A. 養(yǎng)成(習(xí)慣) B. 發(fā)展C. 開發(fā) (1) A(2) B(3) C 3、develop v.developed adj. 發(fā)達(dá)的 develo

7、ping adj. 發(fā)展中的 development n. 發(fā)展 鏈接 用develop的正確形式填空 With the development of science and technology, some developing countries have developed into developed ones. 3、develop v.4、puzzle n&v.根據(jù)語境猜詞義(1) Its a puzzle to me why he hasnt come for my birthday party. (2) Can you help me out with the math

8、puzzle?(3) Her word puzzled him. (4) I was puzzled how to handle the situation. 根據(jù)語義找匹配：A. 使迷惑不解B. 謎C. 難題D. 使為難(1)B(2)C(3) A(4) D4、puzzle n&v.puzzling adj. 令人困惑的；使人感到困惑的puzzled adj. 困惑的；感到困惑的puzzlement n. 困惑，迷惑be in a puzzle about 對大惑不解work out a puzzle 猜謎；解決難題puzzle over 對冥思苦想puzzle out (苦苦思索而)

9、搞清楚puzzle ones brain about / over 對而大傷腦筋鏈接4、puzzle n&v. 用puzzle的正確形式填空 The (1) puzzling boy (2) puzzled his mother, so there was a (3) puzzled expression on her face. Much to (4) puzzlement of his mother, he left home without saying a word. 4、puzzle n&v.5、gentle adj.根據(jù)語境猜詞義(1) Mothers are al

10、ways gentle with their children. (2) Its very comfortable to let the gentle wind blow on your face. 根據(jù)語義找匹配A. 輕輕的，輕柔的 B. 溫柔的，文雅的 (1) B(2) A 5、gentle adj.gentlelooking adj. 看起來彬彬有禮的、看起來很紳士的gentleman n. 紳士，先生gently adv. 溫柔地，輕柔地，輕輕地 gentleness n. 溫柔，和善鏈接be gentle with sb. 對某人體貼入微，對某人溫柔有加gentle in voice

11、 / action 聲音溫柔，舉止文雅have a gentle manner of doing sth. 做某事風(fēng)度高雅短語5、gentle adj. gentle/mild/soft gentle 用于人時，指溫柔文雅的舉止，出于自我約束或?qū)λ说捏w貼。指物時，強(qiáng)調(diào)物體運(yùn)動的輕緩。 mild 指出于本性性格溫柔，脾氣好，強(qiáng)調(diào)自己“態(tài)度安詳，不粗野”。 He has too mild a nature to lose his temper. soft 指人心腸柔軟，言語婉轉(zhuǎn)。 I am always too soft with you. 辨析5、gentle adj. 單項填空 ()(1)

12、Strolling at the lake, the _ wind is brushing your face. How romantic! A. mild B. soft C. gentle D. light5、gentle adj. C考查形容詞詞義辨析。題意是：信步于湖畔，清風(fēng)輕拂著你的臉。多么富有詩情畫意?。⊥ㄟ^語境體現(xiàn)出是物體運(yùn)動輕緩的語義，所以答案是C。 ()(2) The teacher was too _ with her class, so they were out of control. A. mild B. soft C. gentle D. light5、gentle

13、 adj. B考查形容詞詞義辨析。題意是：老師對學(xué)生們心太軟了，他們都不聽她的。語境體現(xiàn)出的是人的心腸柔軟，所以答案是B。6、pull n&v.根據(jù)語境猜詞義(1) To escape the pull of the earth, a rocket must reach a speed of 28,440 km/h. (2) He pulled the door open and rushed out. 根據(jù)語義找匹配：A. 拉B. 吸引力 (1) B(2)A 6、pull n&v.pull down 拆除； (把身體)拖垮pull off (匆忙地)脫下(衣物); (成功地)

14、完成pull on (匆忙地)穿上pull out 拔出； 駛出； 擺脫(困難)pull in 進(jìn)站；靠岸 pull away 駛離；開走pull together 通力合作； 整頓； 控制(感情)pull through 恢復(fù)健康；渡過難關(guān)短語6、pull n&v. pull/draw/drag pull 一般用法，指各種情況的“拉”，但有時強(qiáng)調(diào)一時或突然拉的動作。 I pulled the handle and the door opened. draw 指平穩(wěn)、較輕地拉。 After some time, the fisherman began to draw the net.

15、drag 往往指用大力氣拖拉笨重物體，有“拖拉”的意思。 He dragged a heavy box upstairs alone. 辨析6、pull n&v. C考查動詞短語辨析。 語義是：班車駛進(jìn)車站，乘客一個個地下來了。drive away開走；push in 是不存在的短語；rush in 沖進(jìn)，不合題意，所以答案是C。 單項填空 ()(1) The bus _ the bus station and the passengers got off one after another. A. drove away B. pushed in C. pulled in D. rus

16、hed in6、pull n&v. D考查動詞短語辨析。 語義是：勇士匆忙脫下衣服跳進(jìn)河里救那落水兒童。pull on匆忙穿上；put off 推遲；take off脫下，在語境中不是最佳答案；pull off匆忙脫下，所以答案是D。 ()(2) The brave man _ his clothes and jumped into the river to save the drowning boy. A. pulled on B. put off C. took off D. pulled off6、pull n&v.7、cheer up根據(jù)語境猜詞義(1) Its sai

17、d that thousands packed the city center to cheer her. (2) Everybody cheered when the medical team arrived. (3) When the rescuers appeared, cheers ran out of the waiting crowd. 根據(jù)語義找匹配A. 為喝彩B. 歡呼C. 歡呼聲；喝彩聲 (1) A(2) B(3) C 7、cheer upCheers! 干杯！ cheerful adj. 興高采烈的； 精神振奮的鏈接cheer up (使)高興起來； (使)振作起來chee

18、r on 為鼓氣； 向喝彩短語8、 break out根據(jù)語境感悟其用法(1)Last year EV71 virus broke_out in many parts of China. (2)Last night a fire broke_out in his house. 根據(jù)語境break out意思是：_。8、 break out (戰(zhàn)爭、火災(zāi)、疫病)發(fā)生、爆發(fā) 注意注意：“發(fā)生”在英漢表達(dá)形式上有不同。 漢語“發(fā)生”后接賓語，但英語不可以，它要把漢語中的賓語放在主語位置上，且不能用被動語態(tài)。 單項填空 ()(1) To understand the grammar of the se

19、ntence, you must break it _ into parts. A. down B. up C. off D. out8、 break out A考查動副詞的搭配。題意是：要想理解這句話的語法，你必須把它劃分開。所以答案是A。 ()(2) News reports say peace talks between the two countries _ with no agreement reached. A. have broken down B. have broken outC. have broken in D. have broken up8、 break out A題

20、意是：據(jù)新聞報道，兩國和談由于沒有達(dá)成一致意見而破裂。所以答案是A。9、come on根據(jù)語境猜詞義(1)Come_on! well be late. (2)Come_on,_guys! You can do it. (3)Come_on! Our future is bright. We will be successful. (4)Oh! come_on,_dont lie to me. (5)Come_on! Baby. 根據(jù)語義找匹配A.用于表示催促，相當(dāng)于Hurry up! 趕快！ 抓緊！抓緊時間！B.表示對對方的鼓勵。 加油！ 加把勁！C.表示對對方的勸慰。 高興點兒！樂觀點兒！D

21、.用于對對方的挑釁。 來呀！來吧！E.表示對對方所說的早有耳聞。算了吧！得了吧！ 別逗了！(1)A(2)B(3)C(4)E(5)D9、come on come about 發(fā)生，產(chǎn)生 come along (表示催促)快點！一道去，進(jìn)展 come back to life 蘇醒，復(fù)活 come down 下來，降價 come out 出現(xiàn)，結(jié)果，出版(出版之物在主語位置上，不能用被動語態(tài)) come over 過來，短暫造訪，順便來訪，從(遠(yuǎn)道)而來短語9、come on come around 再度出現(xiàn)、改變(觀點、心態(tài)) come to 來到，總計，結(jié)果是 come up 上來，上升，提出

22、(賓語在主語位置上，不能用被動語態(tài)) come up with 提出(直接接賓語)，想出，趕上 come into being 出現(xiàn)，產(chǎn)生，形成 come for 來取，為而來短語9、come on 單項填空 ()(1) Its already 10 oclock, I wonder how it _ that she was two hours late on such a short trip. A. came over B. came out C. came about D. came up9、come on C考查come有關(guān)短語的語義辨析。語義是：已經(jīng)10點了。我納悶這么短的一段路他

23、遲到兩個小時是怎么回事。依據(jù)語境語義說明這一局面的產(chǎn)生。come over過來，短暫造訪，順便來訪，從(遠(yuǎn)道)而來；come out 出現(xiàn)，結(jié)果，出版；come about 發(fā)生，產(chǎn)生；come up上來，上升，提出，所以答案是C。9、come on ()(2) I am dead tired. I cant walk any further, Jenny. _， Tommy. You can do it!A. No problem B. No hurry C. Come on D. Thats OK9、come on C考查交際英語的使用。語義是：我都累死了。詹妮，我一步都不能走了。加把勁吧

24、，湯米，你一定能行的！表示鼓勵。No problem是對別人請求你做某事的應(yīng)允；No hurry漢語式的表達(dá)；Come on表示鼓勵；Thats OK. 對道歉的回應(yīng)，所以答案是C。9、come on ()(3) The dictionary is being printed and it will soon_. A. turn out B. come out C. start out D. go out9、come on B考查動詞短語語義的辨析。語義是：這本詞典正在付印中且不久就要出版了。turn out雖然有“出版”的意思，但在這里要用被動語態(tài)；come out表示“出版”，在這里不用被

25、動語態(tài)；start out動身，出發(fā)；go out 出去，所以答案是B。9、come on10、What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. (P25) 隨后它將變成什么樣子無人知曉，直到38到45億年之間它才形成了一個固體的球體。 when 在這個句子中是并列連詞引導(dǎo)并列句。when引導(dǎo)并列句不能放在句首，它所體現(xiàn)出的語義是：“就在這時；就在那時；此時此刻；屆時”。一般它有兩個極具有代表性的句式：

26、(1)be doing sth. when 表示“正在做某事就在這個時候發(fā)生了另外的一件事” 。(2)be about to do sth. when 表示“正要做某事就在這個時候發(fā)生了另外一件事”。 I was about to leave when the phone rang. 我正要出去就在這個時候電話響了。 I was walking in the street when I heard my name called from behind. 我正在街上散步就在這時我聽到有人在背后叫我的名字。 Professor Wang will come for a visit to our s

27、chool in May when he will give away his works to our library. 王教授將在5月份訪問我校，屆時他會把他的著作捐贈給我校。 when除了引導(dǎo)時間狀語從句外，它還能引導(dǎo)哪些狀語從句呢？(1)How can he learn anything when he has spent all of his spare time surfing the Internet playing computer games? (2)They kept digging when they must have known there was no hope.

28、(1) 引導(dǎo)原因狀語從句，表示“既然”。既然他把所有的業(yè)余時間都用在上網(wǎng)玩游戲上了，他又怎能學(xué)到什么呢？(2) 引導(dǎo)讓步狀語從句，表示“盡管”。他們明明知道沒任何希望，但他們還是不停地挖。11、Although its origin may still be a puzzle, the moon can never be anything more_than a satellite of the earth.(P28) 盡管月球的起源撲朔迷離，但它只不過就是地球的一顆衛(wèi)星。 neveranything more than no more than only 只是，只不過 The building can never be anything more than a big house. 這個建筑物充其量就是一座大房子。 He is much of a talker, but, as a matter of fact, he is never anything more than an unknow