外研版高一英語必修四module 6 unexplained my steries of the natural world reading practice and cultural corner課時(shí)作業(yè)含答案

1、Module 6 Unexplained Mysteries of the Natural World.完形填空Visitors to the dry, hot Sahara Desert of the Southern Arizona and Northern Mexico are amazed at the many armed giants.They are the saguaro cacti (樹形仙人掌), a giant which gives the landscape its _1_ appearance.In the dry desert the saguaro cacti

2、can live for more than 200 years, grow to a _2_ of 20 feet，and have as many as 50 arms.More _3_， the saguaro cacti still persist despite the unbearable desert climate.Those that have grown to old age have _4_ droughts, freezes, flash floods, and bush fires as well as the _5_ caused by groups of rats

3、 that eat their seedlings (幼苗)Like all other desert _6_， these leafless giants can store water for use during the desert's long dry seasons by _7_ water through their long roots.Naturally, the great saguaro cacti are a(n) _8_ part of the desert life.Actually the giants may be _9_ to many animals

4、, including woodpeckers, owls, doves, bats and insects.In addition，after a saguaro _10_ the age of 50 or so，cold­resistant flowers _11_at the top of the plants once a year.These flowers _12_ birds, bats and bees, which come for the honey and for the tasty flowers with their black seeds._13_ the

5、 splendid saguaros are plentiful in the Southwest, they are unfortunately _14_.These giant cacti have great value in landscape gardening, and the thieves can earn thousands of dollars by uprooting and _15_them to nurseries (苗圃)To protect these southwestern _16_， agents for the Arizona Department of

6、Agriculture go around and _17_ the desert.It's a most important job though a hard one.But without the saguaro cacti，many desert animals would suffer a lack of _18_ and loss of nesting sites.The Southwest，too, would _19_ something of unique importance, since these desert giants have become a _20_

7、 of the dry region.本文介紹了生長在沙漠中的一種標(biāo)志性植物樹形仙人掌的生存環(huán)境及生存狀況。1A.general Bbasic Cunique Dlovely答案：C解析：根據(jù)下文可知，樹形仙人掌有多達(dá)50個(gè)手形分支，所以形狀獨(dú)特，unique“獨(dú)特的”，符合題意。2A.length Bheight Csize Dwidth答案：B解析：根據(jù)前面的“giant”及后面的“20 feet”可知，此處表示的是“高度”，height高度，符合題意。3A.pleasingly Binspiringly Cinterestingly Damazingly答案：D解析：根據(jù)上文可知，游客對

8、樹形仙人掌的形狀驚訝不已，現(xiàn)在更令人驚訝的是它們的適應(yīng)能力。amazingly“令人驚訝地”，符合語境。故選D。pleasingly“令人愉快地”；inspiringly“鼓舞人心地”；interestingly“有趣地”。4A.lived through Bbroken through Ccut through Dgot through答案：A解析：根據(jù)上下文可知，老的樹形仙人掌“經(jīng)歷”了惡劣環(huán)境的考驗(yàn)。live through“經(jīng)歷”，符合語境。故選A。break through“突破”；cut through“抄近路穿過；走近路”；get through“接通電話；通過考試”。5A.cr

9、isis Bdamage Cdestruction Dload答案：B解析：除了要經(jīng)受惡劣的氣候外，樹形仙人掌還要遭受老鼠的“破壞”。damage“破壞”，符合題意。故選B。crisis“危機(jī)”；destruction“毀滅”；load“負(fù)擔(dān)”。6A.plants Blives Canimals Dcreatures答案：A解析：由語境可知，此處指像沙漠里其他所有的“植物”一樣。plant“植物”，符合題意。故選A。life“生命”；animal“動(dòng)物”；creature“生物”。7A.pouring Bsqueezing Cpumping Dabsorbing答案：D解析：樹形仙人掌通過它們

10、的長根莖吸收水。absorb“吸收”，符合語境。故選D。pour“倒；灌”；squeeze“擠壓”；pump“抽水”。8A.independent Bvital Coriginal Dmysterious答案：B解析：根據(jù)下文可知，作為許多動(dòng)物賴以生存的食物和家園，樹形仙人掌是沙漠“極為重要的”一部分。vital“極重要的”，符合語境。故選B。independent“獨(dú)立的”；original“原始的”；mysterious“神秘的”。9A.spot Bfield Chome Dcamp答案：C解析：根據(jù)最后一段的倒數(shù)第二句“But without the saguaro cacti. los

11、s of nesting sites.”可知，樹形仙人掌可能是許多動(dòng)物的棲息地。home“家園”，符合語境。故選C。spot“地點(diǎn)”；field“田地”；camp“營地”。10A.turns Btakes Cmeets Dgains答案：A解析：樹形仙人掌長到50歲左右。turn意為“達(dá)到(一定年齡或時(shí)間)”，其后可以直接跟數(shù)字。11A.come up Bcome out Cshow off Dshow up答案：B解析：根據(jù)上下文可知，這里指樹形仙人掌開花了。come out“(花朵)開放”，符合題意。故選B。come up“走近；被提到”；show off“炫耀”；show up“露面；到

12、達(dá)”。12A.call Btrap Cfascinate Dstick答案：C解析：根據(jù)下文中的“which come for the honey”可知，樹形仙人掌的花吸引了一些動(dòng)物。fascinate“使著迷；深深吸引”，符合題意。故選C。call “打電話”；trap“困住”；stick“粘貼”。13A.As BBut CAlthough DYet答案：C解析：在西南部，盡管這壯麗的樹形仙人掌很多，但它們卻面臨著危險(xiǎn)。逗號前后表示讓步關(guān)系，although“盡管”，符合語境。14A.in danger Bin demand Cin need Din control答案：A解析：根據(jù)上題解析

13、可知，in danger“處于危險(xiǎn)之中”，符合題意。故選A。in demand“需求大；受歡迎”；in need“需要”；in control“掌管”。15A.exchanging Btrading Coffering Dselling答案：D解析：根據(jù)此空前的“These giant cacti have great value in landscape gardening，and the thieves can earn thousands of dollars.”可知，樹形仙人掌被偷去賣錢，sell“賣”，符合語境。故選D。exchange“交換”；trade“交易；以物易物”；offe

14、r“提供”。16A.treasures Bdecorations Cpossessions Dcreations答案：A解析：根據(jù)全文可知，樹形仙人掌是應(yīng)該受到保護(hù)的沙漠珍寶。treasure“珍寶”，符合語境。故選A。decoration“裝飾”；possession“財(cái)產(chǎn)”；creation“發(fā)明；創(chuàng)造”。17A.look over Bhand over Cwatch over Dturn over答案：C解析：為了保護(hù)這些珍寶，農(nóng)業(yè)農(nóng)村部派代理人保護(hù)沙漠。watch over“監(jiān)督；保護(hù)”，符合語境。故選C。look over“瀏覽”；hand over“移交”；turn over“翻轉(zhuǎn)

15、”。18A.food Bscenery Cwater Dflavor答案：A解析：沒有了樹形仙人掌，就意味著動(dòng)物們“食物”的短缺。故選A。19A.affect Babandon Cincrease Dlose答案：D解析：西南部也將失去這些極具重要性的東西，lose“失去”，符合題意。故選D。affect“影響”；abandon“遺棄；放棄”；increase“增加”。20A.signal Bsign Cmark Dsymbol答案：D解析：根據(jù)語境可知，這些沙漠巨型植物已經(jīng)變成了這個(gè)干燥區(qū)域的標(biāo)志。symbol“標(biāo)志”，符合題意。故選D。signal“信號”；sign“跡象”；mark“記號

16、”。.短文改錯(cuò)下面短文共有10處語言錯(cuò)誤，每句中最多有兩處，每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。增加：在缺詞處加一個(gè)漏字符號()，并在其下面寫出該加的詞。刪除：把多余的詞用斜線()劃掉。修改：在錯(cuò)的詞下畫一橫線，并在該詞下面寫出修改后的詞。注意：1.每處錯(cuò)誤及其修改均僅限一詞；2只允許修改10處，多者(從第11處起)不計(jì)分。Last summer, I spend my vacation at my aunt's house in mountainous village.One morning I went fishing in a river, which I found a favor point.Throwing out my line, I waited anxious for a bite.Suddenly there came a cry，“ Help! Help！” I looked in the direction of the call and saw a boy struggle in the river.I threw the fishi