2019-2020年高考英語 Unit 2 Robots要點(diǎn)梳理+重點(diǎn)突破教案 新人教版選修7.doc

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2019-2020年高考英語 Unit 2 Robots要點(diǎn)梳理+重點(diǎn)突破教案 新人教版選修7要 點(diǎn) 梳 理 高效梳理知識備考重點(diǎn)單詞1desire n渴望；欲望；渴求 vt.希望得到；想要desirable adj.渴望的，有欲望的2satisfaction n滿意；滿足；令人滿意的事物satisfactory adj.令人滿意的satisfy vt.使感到滿意3alarm vt.使警覺；使驚恐；驚動n.警報；驚恐alarmed adj.擔(dān)心的；害怕的4sympathy n同情(心)sympathetic adj.同情的；有同情心的sympathize vi.同情；憐憫；贊同5overweight adj.超重的；體重超常的6elegant adj.優(yōu)雅的；高雅的；講究的7favour n喜愛；恩惠vt.喜愛；偏袒favourable adj.贊成的；有利的favoured adj.滿意的；優(yōu)惠的favourite n最喜愛的 adj.最喜歡的8absurd adj.荒謬的；可笑的9acpany vt.陪伴；伴奏10affair n事務(wù)；事情；曖昧關(guān)系11declare vt.宣布；聲明；表明；宣稱declaration n宣言；公告；布告；告示12state vt.陳述；宣布13grand adj.大的；豪華的；雄偉的14staff n全體員工；手杖stuff n原料、材料15junior adj.較年幼的；資歷較淺的；地位較低的n.年少者；晚輩；等級較低者senior n. & adj.(反義詞)16talent n天才；特殊能力；才干telented adj.有才氣的；有才能的17divorce n離婚；斷絕關(guān)系 vt.與離婚；與脫離18obey vt. & vi.服從；順從重點(diǎn)短語1test out試驗(yàn)；考驗(yàn)2ring up 給打電話3turn around 轉(zhuǎn)向；回轉(zhuǎn)4leave.alone 不管，別惹；讓一個人待著5take.seriously 認(rèn)真對待6set aside 將放在一邊；為節(jié)省 或保留(錢或時間)7in all 一共；總計8be bound to 一定做9search for 尋找10or rather 更確切地說11a surprised look 吃驚的表情重點(diǎn)句型1As she turned around, there stood Gladys Claffern. 當(dāng)她轉(zhuǎn)過身時，格拉迪斯克拉芬站在那里。2But even though Tony had been so clever, he would have to be rebuiltyou cannot have women falling in love with machines.但是，盡管托尼很聰明，他還得經(jīng)過一番改造總不能讓女人與機(jī)器相愛吧！3It was when Asimov was eleven years old that his talent for writing became obvious.阿西莫夫的寫作天才是在他11歲時才顯露出來的。4Use a clear simple style as if you were writing to younger students in your school.運(yùn)用簡潔明了的寫作風(fēng)格，就好像你的讀者是你們學(xué)校低年級的學(xué)生那樣。高考范文(xx陜西)某天，你班貼出了一張通知。請根據(jù)通知、內(nèi)容要點(diǎn)和要求寫一篇英文發(fā)言稿。內(nèi)容要點(diǎn)：1你對“周五讀報活動”的看法；2陳述你的理由(要舉例說明)；3你的具體建議。要求：1.短文必須寫在答題卡的指定區(qū)域。2短文詞數(shù)不少于80(不含已寫好的部分)。3內(nèi)容充實(shí)，結(jié)構(gòu)完整，語意連貫。 4書寫須清晰、工整。Dear fellow students， Our monitor suggests that we have “Friday News Hour”. I think that_范文Dear_fellow_students，Our_monitor_suggests_that_we_have_“Friday_News_Hour”_I_think_that it is a good idea. Everyone knows that we are busy all day. Seldom do we know what is happening both at home and abroad, let alone what we can do for our country. By reading newspapers we can get more information about the world outside. So I think “Friday News Hour” can broaden our mind and enrich our school life. Whats more, it will help us improve our reading skills. As for my suggestion, I think its better to have it twice a week. And we should make a choice about what well read. I am sure everyone will benefit a lot from this activity.考 點(diǎn) 探 究 互動探究能力備考.詞匯短語過關(guān)1desire v. 期望 n欲望，希望，請求desirable adj. 值得擁有的，可取的，有利的have no desire for sth. 對沒有欲望have a strong desire to do sth.迫切想做某事do sth. at sb.s desire應(yīng)的要求做某事satisfy ones desires 滿足某人的欲望/愿望desire for sth. 渴望得到desire to do/sb. to do sth. 迫切希望做/某人做某事desirethat主語(should)動詞原形(虛擬語氣)It is desirable that主語(should)動詞原形是可取的。即學(xué)即練1(1)They _ to learn a second language.他們不想學(xué)另一種語言。(2)I _ to a famous university.我很想上一所名牌大學(xué)。have no desiredesire to go(3)Most people _ a lot of knowledge.大多數(shù)人渴求更多的知識。(4)The couple _ their son _ to a famous university.那對夫妻迫切地希望他們的兒子能上名牌大學(xué)。desire fordesired to go(5)The group leader desired that we _ it right away.那個組長迫切希望我們現(xiàn)在就開始做那件事。(should) do2alarm n警報；驚恐 vt.使警覺；使驚恐；驚動give/raise/sound the alarm發(fā)警報take(the) alarm at.對感到吃驚；因而驚恐be alarmed at/for.被嚇一跳即學(xué)即練2(1)He _ when the robber came in.搶劫犯一進(jìn)門他就報了警。(2)I hope you didnt _ the news.我希望你沒有因?yàn)槁牭侥莻€消息而驚慌。sounded the alarmtake alarm at(3)The noise of the shot _ hundreds of birds.槍聲驚動了千百只鳥。alarmed3sympathy n同情，同情心；贊同，支持have/feel sympathy for sb./sth.對某人/某物表示同情get sympathy from sb.獲得某人的同情out of sympathy出于同情(have) sympathy with/for.贊同(支持)in sympathy with sb./sth.支持某人/某事即學(xué)即練3(1)It is his own fault, so hell _ _ me.這是他自己的錯，所以我不會去同情他。(2)We all _ the victims of the Wenchuan Earthquake.我們所有人對汶川大地震的遇難者都深表同情。get nosympathy fromhave great sympathy for(3)Do you _ his point of view？你同意他的觀點(diǎn)嗎？(4)Im _ you on that point.在那一點(diǎn)上，我同意你的看法。have any sympathy within sympathy with4favour (favor) n喜愛；恩惠，幫忙；優(yōu)惠vt.喜愛；偏袒ask a favor of sb.求人幫一個忙，求人做某事do a favor for sb.幫某人一個忙，給某人做件事be in(out of) favor(with)受寵(失寵)，得到(不受)偏愛in favor of贊成，主張in ones favor對某人有利即學(xué)即練4(1)May I _ you？請您幫個忙行嗎？(2)Was he _ the death penalty?他贊成死刑嗎？(3)_ and turn the radio down while Im on the phone, will you?勞駕，我在打電話時把收音機(jī)的聲音調(diào)小點(diǎn)好嗎？ask a favor ofin favor ofDo me a favor5acpany vt. 陪伴；伴奏acpany sth. with/by sth. 與同時存在或發(fā)生acpany sb. at/on sth. 用給某人伴奏acpany sb. to do sth. 陪某人去做某事acpany sb. to. 陪某人到be acpanied by.由伴奏即學(xué)即練5(1)Strong winds _ heavy rain.狂風(fēng)夾著暴雨。(2)Children under 14 must _ an adult.14歲以下的兒童必須有成人陪伴。(3)I will _ Professor Li _ the station.我要送李教授去車站。were acpanied bybe acpained byacpanyto6declare v. 表明；聲明；宣布；宣告；宣稱declare sth. 宣布某事declare sb./sth. (to be)adj. 宣布某人/某物declare off 取消(約定等)declare for/against sb./sth.表示贊成/不贊成某人/某事declare oneself 表明態(tài)度；發(fā)表意見即學(xué)即練6(1)I _ this exhibition _.我宣布展覽會開幕。(2)The doctor finally _ the man was dead.醫(yī)生最終宣布該男子死亡。(3)Police have now _ drug dealers in the area.警方已經(jīng)對這個地區(qū)的毒販宣戰(zhàn)了。declareopendeclared thatdeclared war on(4)Paredes decided to _ federation.帕雷德斯決定聲明支持聯(lián)邦政府。declare for7test out試驗(yàn)；測試；檢查turn out證明是；生產(chǎn)；出來put out熄滅；出版let out泄露；放出，發(fā)出set out著手，開始find out找出try out試驗(yàn)figure out合計，計算出；想出即學(xué)即練7(1)They _ the new sports car.他們測試了那部新跑車。(2)Id better have my eyes _.我該去檢查視力了。(3)Drugs should be _ animals.藥品應(yīng)先在動物身上做試驗(yàn)。tested outtestedtested on(4)Guess the meaning of the words in the two boxes, then _ a few more words that you can add to each box.猜兩個方框中單詞的意思，并想出一些可以加入其中的單詞。(5)All this may _ to be impossible.這一切也許會被證明是不可能的。figure outturn out(6)He _ a cry of surprise.他驚訝地叫了一聲。(7)They had _ the fire before we arrived there.我們到達(dá)之前，他們已撲滅了火。let output out8turn around 轉(zhuǎn)向；回轉(zhuǎn)turn away 走開，離開；把打發(fā)走turn down 拒絕，摒斥(提議、建議、提建議的人等)turn sb. in 把某人交給警察，向警方交出某人turn sth. in 上繳，繳回；交出turn out 證明為；結(jié)果turn into 使成為；使變成；翻譯成turn over 反復(fù)考慮，倒轉(zhuǎn)turn to 轉(zhuǎn)向；求救于，求助于turn up 找到，發(fā)現(xiàn)；出現(xiàn)，來到即學(xué)即練8用適當(dāng)?shù)慕?、副詞填空(1)Turn _ and let me look at your back.(2)We were more than halfway up the mountain, so we didnt want to turn _.(3)Please turn the television _ a bit as our baby is sleeping.aroundarounddown(4)Nobody can turn _ the wheel of history.(5)The plan turned _ to be a failure.(6)We often turn _ this handbook for information on transistors.(7)Why did they suddenly turn you _？(8)As he had broken the rule of the factory, he was turned _.backouttodownaway(9)He promised to e, but hasnt turned _.up9leave.alone 不管；不要打擾；讓一個人單獨(dú)待著leave behind 留下；不帶走；忘了帶leave for 動身去leave off 停止；結(jié)束leave out 省略；忘掉；漏掉leave.aside 擱置一邊；不予考慮leave it with me 把這事留給我吧leave sth. for sb. 把某物遞交給某人即學(xué)即練9(1)Go away and _！走開，別打擾我！Ive told you before_！我告訴過你別碰我的東西！leave me aloneleave my things alone提示：(1)leave/let sb./sth. alonelet sb./sth. be 別管；不打擾；不碰；順其自然。(2)let alone 更不用說。如：There isnt enough room for us, let alone any guests.連我們都沒有足夠的空間，更不用說客人們了。(2)用適當(dāng)?shù)慕?、副詞填空I think we should leave _ now and have a cup of tea.Can you tell me the time? Ive left my watch _.She left _ an important detail in her account.Dont you think wed leave _ the concert now?A railway station is no place for a child to be left _ at night.offbehindoutforalone10set aside 留出，撥出，把置于一旁lay aside 放在一邊，積蓄put aside 積蓄，擱一擱set off 出發(fā)，起程，引爆set about 著手/開始做(后接名詞、動名詞)set out 出發(fā)，開始做(后接不定式)set down 放下，記下set up 建立，樹立，搭起set.back 使推遲，耽誤set forth 出發(fā)，動身，起程，闡明，陳述即學(xué)即練10(1)Ive _ some money for the journey.我為那趟旅行存了一些錢。He _ all offers _. 所有的提議他都置之不理。set asidesetaside(2)用適當(dāng)?shù)慕?、副詞填空Why dont you set your ideas _ on paper?They have set _ on a journey around the world.I set _ to knit a sweater but in the end it became a vest.A new government was set _ after the civil war.Do you know how to set _ going on this work?downoff/outoutupabout.重點(diǎn)句型詳解1As she turned around, there_stood Gladys Claffern.她剛一轉(zhuǎn)過身去，就看到格拉迪斯克拉芬站在那里。There stands.倒裝句。(1)there, here, now, then 等副詞放在句首時，句子要完全倒裝，謂語動詞常用 e, go, be, lie, run 等。 (2)表示方位的副詞或介詞短語置于句首時，句子也要完全倒裝，句中的謂語動詞通常是 e, go等表示動作的動詞。 (3)在上述全部倒裝中，主語如為人稱代詞，則應(yīng)放在動詞前面。There goes the bell. 鈴響了。Now es your turn. 現(xiàn)在輪到你了。The door opened and in came a teacher.門開了，進(jìn)來一位老師。Away went the students. 學(xué)生們走了。Away they went. 他們走了。Present at the meeting are some teachers and students.一些老師和學(xué)生出席了會議。即境活用1Look! There _.Oh, there_.Aes the bus; es itBes the bus; it esCthe bus es; it esDthe bus es; es it答案：B解析：考查全部倒裝。注意主語是代詞時，不倒裝，故選B。2But even though Tony had been so clever, he would have to be rebuiltyou cannot have women falling_in_love_with machines.但是，盡管托尼很聰明，他還得經(jīng)過一番改造你總不能讓女人與機(jī)器相愛吧。have sb. doing 意為“叫/讓/使某人做某事或讓某種情況發(fā)生”。賓語后面用現(xiàn)在分詞做賓語補(bǔ)足語，表示賓語與現(xiàn)在分詞表示的動作之間為主動關(guān)系，且動作正在進(jìn)行或一直進(jìn)行。wont have sb. doing 意為“不讓某人做某事”。Dont have the baby crying! 不要讓嬰兒啼哭！Youd better have your car running slowly.你最好把車子開慢點(diǎn)兒。I wont have you talking to your mother like that.我不允許你這樣與你媽媽說話。拓展：(1)have sb. do 讓某人做某事(do表示動作由 sb. 發(fā)出)(2)have sb./sth. done 使某事被別人做(sb./sth. 與動詞 do構(gòu)成動賓關(guān)系)(3)have sth. to do 有事要做(to do做后置定語修飾 sth.，該不定式的動作由主語發(fā)出)(4)have sth. to be done 有事要做(to do做后置定語修飾 sth.，但不定式的動作不是由主語發(fā)出的，而是別人)Ill have the gardener plant some trees.我要讓園丁種些樹。Why dont you have your hair cut? 你為什么不理發(fā)？I have some clothes to wash.我有些衣服要洗。(洗衣服是主語發(fā)出的動作)I have some clothes to be washed.我有些衣服要洗。(洗衣服不是主語發(fā)出的動作，由別人來做)即境活用2You should understand the traffic rule by now. Youve had it _ often enough.AexplainingBto explainCexplain Dexplained答案：D解析：句中 it指 the traffic rule，故用 have sth. done “使某事被做”。易 錯 點(diǎn) 撥 自我完善誤區(qū)備考1.affair/thing/matter/business/event(1)affair 意為“事情”“事件”，含義較廣，泛指已做或待做的事。復(fù)數(shù) affairs 一般指商業(yè)事務(wù)及政府的日常事務(wù)，如財政事務(wù)、外交事務(wù)等。(2)thing 意為“事情”“事物”，不管大事還是小事，好事還是壞事均可稱為 thing；thing的復(fù)數(shù)形式 things 可作“形勢”解。(3)matter 意為“事件”“事故”，系普通用詞，常指需要考慮和處理的事情，而不強(qiáng)調(diào)行動，matter 作“物質(zhì)”解時，是不可數(shù)名詞。(4)business 作“商務(wù)”“買賣”解時，不能用復(fù)數(shù)形式，常常指所指派的任務(wù)、職責(zé)，有時說的是指派的工作或商業(yè)上的買賣活動等。常用的短語有 in business “經(jīng)商”；on business “有事，因公”等。(5)event 多指“大事件”，尤指重要、有意思或不尋常的事件。應(yīng)用1(1)I cant say which wine is bestits a(n) _ of personal taste.(2)Its none of your _.(3)What were the chief _ last year?(4)He thought she was having a(n)_matterbusinesseventsaffair2. declare/announce(1)declare 指正式和明確地向公眾“宣布”“宣告”“聲明”，側(cè)重“當(dāng)眾”發(fā)表，多用于宣戰(zhàn)、議和、宣判某人有罪、宣布國家獨(dú)立等，declare 后可跟復(fù)合賓語。(2)announce 指含有預(yù)告意味的“宣布”“宣告”或“發(fā)表”，指公開地或官方性質(zhì)的“宣布”，側(cè)重“預(yù)告”人們所關(guān)心或感興趣的事情，尤指新聞之類的消息，后如需接間接賓語時，要在間接賓語前加 to。應(yīng)用2(1)It was _ that there would be a celebration on Sunday.據(jù)宣布，星期日要舉行慶祝(活動)。(2)This powerful country _ war on that small country.這個大國向那個小國宣戰(zhàn)。(3)The court _ the young man guilty.法庭宣布這位年輕人有罪。announceddeclareddeclared(4)The little girl _ that she would do an experiment on Friday.這個小女孩向大家宣布她要在星期五做個實(shí)驗(yàn)。announced3. have sb./sth. do/doing/done/to do/to be done的用法應(yīng)用3(1)Youd better have your car _ slowly.你最好把車子開慢點(diǎn)。(2)I wont have you _ to your mother like that.我不允許你這樣與你媽媽說話。runningtalking(3)I have had Tom _ the housework again.我已讓湯姆重新做了一遍家務(wù)。(4)He had his wallet _ the station.在車站他讓人掏了錢包。(5)Im sorry I cant go to the movie with you. I have lots of letters _.(回信是主語的動作)對不起我不能與你一起看電影了，我有很多信要回。dopicked atto answer(6)Dolla, you cant leave the office now. I have some letters _.多拉，你現(xiàn)在還不能走，我有些信需要打印。(打印不是主語的動作，是多拉做的事情)to be typed高 效 作 業(yè) 自我測評技能備考.單詞拼寫1He has a strong d_ for knowledge.2Can you do me the f_ to fetch some chalk?3The girl has a t_ for drawing and has won a national prize.4She is the e_ of the whole street.5She never expressed any s_ when he was injured.desirefavourtalentenvysympathy6The _ (全體員工) of our pany is excellent.7The singer was _ (伴隨) by the piano.8You must _ (服從) the order and do as I told you.9I _ (宣布) the meeting closed. 10What an _ (荒唐的) suggestion!staffacpaniedobeydeclaredabsurd .單項選擇1(xx河北正定中學(xué))Every year in China, _ day is set aside to honor and show respect to _ elders.A/; the Bthe; theCa; / Da; the答案：D解析：考查冠詞。語意為“在中國，為了向老年人表示尊敬，每年有一天被定為敬老日”。day為可數(shù)名詞，在此表示泛指，故其前用a修飾；elders前加the表示老年人。2Its unnatural for a mother to leave her child _ to enjoy herself.Aalone BbehindCout Doff答案：A解析：leave.alone表示“丟下不管”，是一個固定短語。3The accident happened on such an evening with strong winds _ by heavy rain.Aappeared BhappenedCacpanied Dmixed答案：C解析：本題中過去分詞短語acpanied by heavy rain做定語修飾winds, acpany意為“伴隨、陪伴”，符合語境。4We are not ready to go into production yet. The new switch mechanism isnt fully _.Aworked out Bturned outCleft out Dtested out答案：D解析：test out表示“試驗(yàn)”。句意為：我們還不準(zhǔn)備投產(chǎn)，新開關(guān)系統(tǒng)裝置還未完全調(diào)試好。只有test out符合語意要求。5Men and women should be treated equally according to the law, but _ there is great room for improvement.Ain reality Babove allCafter all Din return答案：A解析：句意：根據(jù)法律男人和女人應(yīng)該受到平等的對待。但事實(shí)上，這還有很大的改進(jìn)空間。in reality事實(shí)上；above all最重要的是；after all畢竟；in return作為回報，作為報答。6We desire that immediate help_to the local villagers who have been trapped by the flood.Abe given Bwill be givenCshould give Dis given答案：A解析：desire賓語從句中用“should動詞原形”，其中 should 可以省略。因?yàn)?help和 give 之間是被動關(guān)系，故C錯誤。7Young people should concern themselves with state _.Abusiness BmattersCincidents Daffairs答案：D解析：state affairs 指“國事”。8It is rather _ that we still do not know how many species there are in the world today.Amisleading BembarrassingCboring Ddemanding答案：B解析：句意：我們還不知道目前世界上的動植物有多少種，這是令人尷尬的事。embarrassing “令人尷尬的”；misleading “令人誤解的”；boring “令人厭倦的”；demanding “(工作)苛求的，費(fèi)力的”。9Im sure we can manage to do it, for our luck has _.Aturned down Bturned inCturned around Dturned away答案：C解析：turn around 轉(zhuǎn)向，回轉(zhuǎn)；turn down 拒絕，關(guān)小(聲音等)；turn in 上交； turn away 打發(fā)走。10Busy as they are, parents should _ at least two hours every week to spend with their children.Aset out Bset awayCset aside Dset off答案：C解析：句意為“盡管很忙，父母每周也應(yīng)該拿出至少兩個小時的時間與孩子們在一起”。set aside at least two hours 留出或拿出至少兩個小時的時間。11The teacher was not satisfied with Toms _ for his being late yesterday.Aaccusation BexplanationCdeclaration Ddesire答案：B解析：explanation “解釋，解說”，此處指對遲到的解釋。accusation 控告，譴責(zé)；declaration 宣告，聲明； desire 欲望。12(xx江西師大附中一模)Jacks speech was heard by a group of live judges, all of _ agreed that it was the best one this year.Awho BwhichCthat Dwhom答案：D解析：考查定語從句。先行詞是人，又是非限制性定語從句，排除B、C兩項。關(guān)系代詞作介詞of的賓語，所以選whom。13(xx上海春招)The employees _ that they should renew their contracts within a week.Aadvise Bhave advisedCare advised Dhad been advised答案：C解析：考查動詞的語態(tài)。語意：(公司)建議員工在一周內(nèi)簽合同。根據(jù)題意。The employees與advise為動賓關(guān)系，所以應(yīng)該用被動結(jié)構(gòu)，故選C項。14The old woman _ her sons and daughters _ and see her from time to time.Asuggested; to e Bhoped; to eCdesired; ing Ddesired; to e答案：D解析：考查 desire sb. to do sth. 希望某人做某事。suggest 和 hope 都不能搭配 sb. to do sth. 結(jié)構(gòu)。15He hurried to the booking office only _ that all the tickets had been sold out.Ato be told Bto tellCtold Dtelling答案：A解析：“only不定式”做結(jié)果狀語，表示動作的結(jié)果，該結(jié)果常常出乎意料。根據(jù)句意可判斷出 he是 tell的動作被執(zhí)行者，所以要用不定式的被動式，表示被告知。 .閱讀理解A What is an animal? For many people, an animal has four legs, a head at the front and a tail at the back. There are, in fact, many different kinds of animals. Some are so small that you cannot see them with human eyes. Some have no head, no mouth and no legs. Some live in the ocean. Some cant fly. They e in thousands of different shapes, sizes and colors. One of the largest groups of animals is the insect group. These animals have six parts to their bodies. Many insects cause human problems. Some carry diseases. Others are a problem because they eat the food that farmers grow. But there are insects, like bees and butterflies, which we need because they help flowers and fruit to grow. Like many of the insects, birds have wings and can fly. There are many different types of birds. Some eat fish and are happy living near rivers or the ocean. Others like to live in the countryside or near towns in flocks of many hundreds and mostly eat insects, and there are birds, like the mountain eagles, which eat meat with their strong sharp beaks. They also have sharp claws on their feet, which are perfect for hunting and killing. Like birds, mammals are warmblooded, and just as all birds have feathers, all mammals have hair on their bodies. Sometimes you can hardly see the hair. Sometimes the hair is very thick, and then it is called fur. There are several different groups of mammals. There are the cats, which include lions and tigers; there are animals with large front teeth, which include mice and rats; there are the sea mammals, which include the whale, the largest animal in the world. Then there are animals which have two arms and can walk on two legs like monkeys and, of course, humans. Fish and reptiles are coldblooded animals. Fish live in the ocean, but reptiles usually live on the land. Reptiles are probably the least popular animals. They include the long thin snakes that many people are afraid of. However, some people keep snakes in their homes as pets.1According to the passage, an animal _.Ahas four legs, a head at the front and a tail at the backBis a living thing which is quite strong to humansCis so small that people cant see it with human eyesDmay e in a different shape, size and color答案及解析： 1D。推理判斷題。根據(jù)第一段可知動物大小各異，顏色各異。2Why are insects monly considered to be harmful?AThey are among the largest groups of animals.BThey all have six legs and three parts to their bodies.CMany of them bring trouble like disease to humans.DThey help flowers and fruit to grow every year.答案及解析： 2C。事實(shí)細(xì)節(jié)題。從第二段Many insects cause human problems.可知，許多昆蟲會給人類帶來麻煩，或傳染疾病或破壞糧食。3How are birds different from mammals?AThey have wings which help them to fly.BT