1、高考英语一轮复习第一部分教材重点全程攻略Unit2Cloning限时规范特训新人教版选修2019-2020年高考英语一轮复习第一部分教材重点全程攻略Unit2Cloning限时规范特训新人教版选修.完形填空Miss the Wild GeeseOne morning in early fall, I spotted a pair of wild geese on our pond. The beautiful sight caught me by _1_， because wed never seen geese there before. I wondered where they came
2、 from and why theyd_2_ our pond. As the days passed, I couldnt_3_getting a closer look and started talking to the geese. They craned their necks and raised their heads _4_but seemed to realize I was a _5_and not an enemy. I felt _6_we were bonding. One day as they were _7_ in the grass near the driv
3、eway, I discovered the reason for their _8_the male had a broken left wing. He was _9_ to fly, and his lifelong mate would not leave him _10_. I marveled (惊叹) at the _11_between them. I asked a wildlife biologist friend what I should_12_. He explained that sometimes a broken wing will heal by itself
4、 and suggested letting _13_ take its course. On the first day of November, I was _14_ in the vicinity (在附近) of the geese with my tractor. I caught some _15_from the corner of my eye. Both geese were running toward the pond, wings beating _16_. The geese gained enough altitude to clear a neighbors ho
5、use, then _17_back toward me, flying no more than 50 feet over my head as if to say goodbye. Then they were out of_18_.I grew _19_them during their stay at our pond, and I miss them. Ill never forget their _20_ to each other. We could all learn a lesson or two from this pair. 篇章导读：本文是一篇记叙文。作者意外地发现自己
6、家的池塘里有一对大雁，而且这对大雁在这里停留了很长一段时间。后来作者发现它们长时间在此逗留的原因公雁的左翅膀折断了，没法飞行，母雁一直陪在它身边不离不弃，直到它的翅膀痊愈可以再次飞行，它们对彼此的忠诚让作者永生难忘。1A.anger BsurpriseCterror Dsorrow 答案：B根据下一句中的“wed never seen geese there before”可知，作者以前从未见过大雁出现在自己家的池塘里，这一景象让作者觉得很优美，所以在看到的时候感到很惊讶。surprise意为“惊讶；吃惊”，符合作者又惊又喜的心情。2A.cleared BdestroyedCchosen Dd
7、isturbed答案：C由本句中的“I wondered where they came from and why”可知，作者非常疑惑这两只大雁从何而来，以及为什么会选择停在了作者家的池塘，所以用chosen。大雁的到来并没有破坏(destroyed)和干扰(disturbed)池塘，反而形成了难得的美景，所以B、D为错误项。3A.resist BimagineCescape Dadmit答案：A根据第一段第二句中的“beautiful sight”和第三句中的where和why可知，作者对这两只大雁既感到钦羡又有不少疑惑，所以忍不住靠近它们，想对它们有更多的了解。cant resist do
8、ing sth. “忍不住做某事”。4A.naturally BhappilyCsadly Dcautiously答案：D由本句中的“not an enemy”说明它们对人的警惕性。cautiously意为“谨慎地”，符合语境。5A.hunter BhelperCfriend Dguard答案：C由句中的关键信息“but . I . not an enemy”可知，大雁意识到作者不是敌人，不会伤害自己，有可能是朋友。所以选friend。6A.whether Beven ifChow Das though答案：D句意：我觉得我们好像正在建立感情。作者对这两只大雁很欣赏，也和它们亲近，而大雁也逐渐
9、将作者看作了朋友，虽然不能用语言交流，但作者觉得自己在与它们建立一种关系和感情。bond “培养感情”，这是作者的感受，所以用as though引导表语从句。7A.jumping BfeedingCworking Dgrowing答案：B根据句中的“in the grass”可知，两只大雁在草丛中觅食的时候，作者发现公雁的左翅折了，feed可用作不及物动词，意为“吃(食)”，符合语境。8A.absence BdelayCvisit Ddeparture答案：C结合上文可知，这对大雁光临作者家的池塘，成为作者和家人的不速之客，而本句中的“a broken left wing”说明作者明白了大雁来
10、到池塘停留的原因，visit意为“游览；参观；拜访”，符合语境。9A.unable BcuriousCeager Dafraid答案：A公雁因为左翼受伤，所以不能飞了。unable意为“不能的”，符合语境。10A.mad BcalmCaround Dbehind答案：D根据上文可知，作者看到的是一对大雁一直形影不离。而现在明白了它们不飞走的原因，也明白了母雁之所以没有飞走是因为对公雁的不离不弃。leave sth. /sb. behind意为“将某物/某人留下”，而母雁并没有将公雁丢下独自离去。11A.bond BquarrelCconflict Dpetition答案：A句意：我对两只大雁之
11、间的关系感到惊叹。本句中的bond是一个名词，意为“联系；关系”，特别强调两只大雁之间生死相依的紧密联系。12A.do BcureCshare Dcheck答案：A根据下一句可知，对于作者的疑惑，野生生物学家朋友给出了解释和建议，说明作者希望能做点什么来帮助这只受伤的大雁，所以用do，这里是一个实义动词，而what是其宾语。13A.chance BnatureCfate Dknowledge答案：B根据空前的“a broken wing will heal by itself”可知，这个野生生物学家朋友告诉作者，折翼会自愈，并建议作者什么都不要做，而是顺其自然。let nature take
12、its course意为“顺其自然；任其自然发展”，是固定搭配，符合语境。14A.playing BexperimentingCworking Dfighting答案：C根据句中的“with my tractor”可知，作者开着拖拉机在靠近大雁的地方工作，working符合语境。15A.atmosphere BdivisionCresponse Dmovement答案：D根据上一句可知，作者本来在工作，而本句中的“from the corner of my eye”说明，作者在工作的时候用眼睛余光捕捉到了大雁的一些举动。movement意为“举动”，符合语境。atmosphere “氛围”，氛
13、围是感受到的，不是看到的。16A.wildly BoccasionallyCslowly Daimlessly答案：A根据下一句中的“gained enough altitude to clear a neighbors house”可知，受伤的大雁也能飞了，所以翅膀拍打得格外有力，这里用wildly强调大雁的兴奋和激动。17A.floated BcircledCslid Dskipped答案：B句意：两只大雁飞到了一定的高度，高到能越过邻居家的屋子，然后飞向我，在我上方盘旋，距离我的头顶不到50英尺，像是要跟我说再见。结合飞鸟的习性可知，在一定的区域内飞行不降落时要盘旋飞行，circle在此
14、作动词，意为“盘旋”，符合语境。18A.order BplaceCsight Dcontrol答案：C结合上一句中的“flying no more than 50 feet over my head as if to say goodbye”可知，这对大雁起飞后和作者道别，然后就飞走了，也就是消失在作者的视野中。out of sight意为“消失在视野中”，符合语境。19A.angry with Bfond ofCtired of Dgrateful to答案：B结合上文及空后的“I miss them”可知，作者已经将两只大雁看作自己的朋友，而两只大雁离开之前也似乎表现出不舍，说明在大雁停留
15、池塘期间作者是很喜欢它们的，所以用grew fond of表示“渐渐喜欢上”。20A.sympathy BobjectionCadjustment Ddevotion答案：D根据第三段最后两句中的“and his lifelong mate would not leave him _10_”和“marveled (惊叹) at . ”可知，作者已经知道母雁对公雁真挚的爱，所以用devotion强调两只鸟儿之间深切的爱。devotion意为“忠诚；热爱；献身；奉献”，符合语境。.阅读理解ACloning is a biological term that refers to the proces
16、s of producing genetically identical organisms such as bacteria, insects and plants that reproduce asexually (无性地). Life on planet survives and thrives due to adaptable cloning that occurs over the course of time. Plants can be cloned using various medium, but this article speaks specifically about
17、water as a medium for cloning.Using Water for CloningGrowing plants in water is a very old practice; the Chinese have been doing it for long. Just bear in mind a few of the following steps and tips, and you can grow your own plant clone.As old as it may sound, take cuttings from a healthier plant, a
18、nd use a sharp knife to cut it. Healthier the mother plant, and sharper the cut, better will be the success rate. Cut the stems at an angle of 45， around 1/4 inch below the leaf nodes. Always have a minimum 56 cuttings.To prepare the rooting solution, take a water holder or container, and pour water
19、 in it. Threefourth of the jar should be filled.Stand the cuttings individually in different jars, and cover them with transparent plastic sheets while cloning. The plastic covering will ensure high humidity levels, and this, bined with the rooting water, will speed the rooting process. Make sure th
20、e water stays clean. Change water after 23 days.The roots will appear in a weeks time. Once you see them, remove the sheet and place them in a location where they can receive partial natural light. Move the rooted cutting to a soil medium once they have enough healthy roots.Cloning of plants in wate
21、r or through other mediums can ensure existence of species, especially those which are endangered. There are many plants that have one in hundred chances of breeding naturally, or cant produce seeds, so cloning such plants through advance technologies will ensure there continued existence. Cloning p
22、lants and trees has helped in better harvest, and increased the plant resistance to harmful viruses and diseases.篇章导读：本文是一篇说明文。大家对于克隆这个概念并不陌生，但是在水中克隆植物也许你并不了解。文章阐述了以水为介质克隆植物的过程及其意义。1According to Paragraph 1, _.Acloning can only be used in all animals and plantsBmany medium can be used to clone plant
23、sCall the livings can clone themselvesDwater is the best medium to clone答案：B细节理解题。根据文章第一段最后一句中的“Plants can be cloned using various medium”可知，可用多种媒介来克隆植物。故B项正确。2It can be inferred that cloning plants in water _.Ais seldom used in todays agricultureBcan make plants not catch diseasesCcan increase farm
24、ers ineDsometimes make species be endangered答案：C推理判断题。文章最后一段提到了水中克隆植物可以使植物更加抗病、高产，因此可推知这样可以增加农民的收入。故C项正确。3What does the passage mainly tell us?AWays to clone plants.BCloning plants in water.CHow to clone animals and plants.DA special way to grow plants.答案：B主旨大意题。文章主要是讲怎样在水中克隆植物，故B项是最佳选项。BPeople may
25、use the expression “birdbrain” in English to talk about someone who is stupid, but crows prove that this is unfair. Now it has been discovered that crows may understand analogies (类推法)It was once thought that only humans could understand analogies, which help us to solve problems creatively, put thi
26、ngs into categories, and make scientific discoveries.To test this ability in animals, scientists do “relational matchingtosample (RMTS)” tests, according to the IFL Science website. If a pair was AA, for example, then picking BB to match it would be correct. If the pair was CD, however, then EF woul
27、d be correct.Apes and monkeys have learned RMTS, but scientists wanted to know if crows could do it, too. An international team led by Edward Wasserman from the University of Iowa in the US first trained two hooded crows to match things by color, shape, and number in what is called “identity matchin
28、gtosample (IMTS)”， then moved onto RMTS.For the IMTS test, the birds were put in a cage with a plastic tray that had three cards and two cups in it. The card in the middle was the sample card. The cups on either side were covered with the other two cards: One was the same as the sample (in the color
29、, shape, or number of shapes pictured), while the other wasnt. The cup with the card that matched the sample card contained two worms to eat.In the second part of the experiment, the birds were tested with relational matching pairs. A card with two samesized circles, for example, meant they should p
30、ick the test card with two samesized squares and not two differentsized circles. The birds did well in the more difficult test and picked the correct card more than three quarters of the time, Science News reports.Wasserman was surprised that crows were able to solve the problem without any training
31、 in RMTS. “What the crows have done is extraordinary，” he said in a news release. “Honestly, if it was only by force that the crows showed this learning, then it would have been an impressive result. But this was spontaneous.”So perhaps its time to stop saying “birdbrain” in the opening paragraph?篇章导读：本文是一篇说明文。通过对乌鸦的研究表明，乌鸦表现出了以前人们没有意识到的鸟类的智力。4Which of the following is TRUE about the tests on the hooded crows?AThe birds did better in RMTS than in IMTS.BThe birds were first made to do RMTS, then IMTS.CThe birds p
