2022届高三英语培优外刊阅读学案：濒危动物话题.docx

1、高三英语培优外刊阅读班级：_学号：_姓名：_外刊精选科学家克隆濒危动物，让33年前的雪貂重生去年12月，一只克隆雪貂在美国出生，它克隆的是一只已经去世32年，一直被冷冻保存的雪貂。作为第一个被克隆的北美本土濒危物种，这一消息在美国引起不少关注。人类几十年来一直在克隆技术领域不断探索，这只克隆雪貂的出生让人们看到了挽救濒危物种的新希望。有很多物种都处于濒危状态，科学家们这次为什么会选择雪貂呢？Meet Elizabeth Ann, the First Cloned Black-Footed FerretBy Sabrina ImblerLast year, Ben Novak drove acr

2、oss the country to spend New Years Eve with a black-footed ferret. Elizabeth Ann had just turned 21 days old surely a milestone for any ferret but a particularly meaningful one for Elizabeth Ann, the first of any native, endangered animal species in North America to be cloned.Mr. Novak, the lead sci

3、entist of the biotechnology nonprofit Revive & Restore, spent less than 15 minutes with Elizabeth Ann, whose black mask, feet and tail were just beginning to show through her downy white fur. It felt like time stopped, Mr. Novak said.Thankfully, time has not stopped for Elizabeth Ann, who now looks

4、bigger, browner and considerably more like a ferret. Cloned siblings are on the way, and potential (cloned) mates are already being lined up. If successful, the project could bring needed genetic diversity to the endangered species. And it marks another promising advance in the wider effort to use c

5、loning to retrieve an ever-growing number of species from the brink of extinction.The black-footed ferret, the first species to be reintroduced to former habitats with the help of artificial insemination, has long been a model species for new conservation technologies. So it is fitting that the ferr

6、ets have become the second species to be cloned for this type of genetic rescue. 【词汇过关】请写出下面文单词在文章中的中文意思。1.milestone malstn n. _2.native netv adj. _3.endangered ndendd adj. _4.species spiiz n. _5.lead lid n. _6.biotechnology bateknldi n. _7.considerably knsdrbli adv. _8.mark mk v. _9.advance dvns n.

7、 _10.effort eft n. _11.retrieve rtriv v. _12.extinction kstkn n. _13.habitat hbtt n. _14.conservation knsven n._【词块学习】请从文章中找到下面中文相对应的文词块。1.排队_2.人工授精_拓展练习阅读理解An endangered black-footed ferret (雪貂), considered to be the rarest mammal in North America, made a “surprise appearance” in a Pueblo West home

8、owners garage on Monday, according to a Colorado Parks and Wildlife(CPW) news report.The unnamed homeowner called CPW about the furry visitor, and while waiting for officers to arrive, he tricked the animal into a box. The home is located near the Walker Ranch, where CPW has been releasing black-foo

9、ted ferrets on a prairie dog colony as part of a major conservation collaboration to restore their populations. Black-footed ferrets rely heavily on prairie dogs, which are often treated as pests by farmers, for food.Since 2013, more than 120 black-footed ferrets have been released on the Walker Ran

10、ch by CPW biologists. By scanning the escaped ferrets microchip, officers were able to determine it was one of nine black-footed ferrets recently released on the ranch.With the blessing of the ranch owner, and after examining the animal and determining it was healthy, CPW officers took the box and h

11、iked deep into the prairie colony in the dark, opened the box and watched the ferret hurry into a prairie dog hole.“We dont know exactly why this black-footed ferret left the colony,” said Ed Schmal, CPW conservation biologist. “We put them into prairie dog holes but they may not stay. Sometimes the

12、y move around the colony to find the right home. This one might have gotten pushed out by other ferrets and it went looking for a new home. We really dont know.”Schmal said CPW has only received one other report of a black-footed ferret leaving the ranch, and he had never heard of one entering a str

13、ucture like a garage. “This is extremely rare,” he said. “Black-footed ferrets are active at night and extremely shy. For some reason, this one left the colony and was seeking shelter. Were just glad it appeared healthy, not starving or sick, and we were able to capture it and return it to the colon

14、y.”8.Who found the black-footed ferret?A.An unnamed homeowner.B.A bus driver.C.A wildlife reserve officer.D.A furry visitor.9.What can we learn about ferrets from the second paragraph?A.They like to go in groups.B.They feed on prairie dogs.C.They often surprise humans.D.They hate the Walker Ranch.10

15、.What did the CPW officers do before returning the ferret?A.They trapped it in a large cage.B.They placed a microchip on it.C.They gave it a health check.D.They paid the ranch owner.11.How did Schmal feel about the ferret entering a garage?A.Satisfied.B.Surprised.C.Disappointed.D.Frightened.外刊精选答案【词

16、汇过关】请写出下面文单词在文章中的中文意思。1.milestone malstn n. 里程碑，重要事件，转折点2.native netv adj. 本土的；土著的3.endangered ndendd adj. 濒临灭绝的；有生命危险的4.species spiiz n. 物种5.lead lid n. 领导者6.biotechnology bateknldi n. 生物技术7.considerably knsdrbli adv. 相当地，非常地8.mark mk v. 是.的迹象，成为.的征兆，表明，标记9.advance dvns n. 进步，进展10.effort eft n. 努力；

17、有组织的活动11.retrieve rtriv v. 找回，索回；检索、获取12.extinction kstkn n. 灭绝13.habitat hbtt n. 栖息地14.conservation knsven n.保护【词块学习】请从文章中找到下面中文相对应的文词块。1.line up排队2.artificial insemination人工授精【全文翻译】来认识一下第一只克隆黑足雪貂伊丽莎白安去年，本诺瓦克驾车横跨美国，只为和一只黑足雪貂一起跨年。这只雪貂名叫伊丽莎白安，刚出生满21天。存活21天，对一只雪貂而言，是重要的里程碑；而对伊丽莎白安而言意义就更加重大。因为她是北美本土第一只

18、被克隆的濒危动物。诺瓦克是生物技术领域的非营利组织“重生与复苏”的首席科学家。跨年夜他和伊丽莎白安呆了不到15分钟。当时，在小雪貂毛茸茸的白色皮毛中间，她眼周部位、脚上和尾巴上的黑色都刚刚能看得出来了。诺瓦克说：“感觉时间都停止了。”幸好，对小雪貂伊丽莎白安而言，时间没有停下来。现在，她看起来体型更大了，毛发的棕色更深了，也更有雪貂的样子了。小雪貂的克隆弟弟妹妹们（克隆自同一只雪貂）即将出生，潜在的(克隆)配偶们也已经提上了日程。如果一切顺利，该项目会为这一濒危物种带来所需的基因多样性。人们一直在努力利用克隆技术，来防止日益增多的濒危物种走向灭绝；而此次克隆雪貂的成功，标志着在该领域又取得了一个令人欣喜的进展。一直以来，黑足雪貂是应用新型动物保护技术的典型物种；此前她们就是第一个通过人工授精重新引入原有栖息地的物种。所以，雪貂成为第二个用克隆方式进行基因抢救的物种也就顺理成章了。拓展练习阅读理解参考答案8.A 9.B 10.C 11.B