2021版高考英语一轮复习 限时规范练24 模块4 Unit 3 Tomorrow’s world B 牛津译林版.docx
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
4 0人已下载
| 下载 | 加入VIP,免费下载 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 2021版高考英语一轮复习 限时规范练24 模块4 Unit Tomorrows world 牛津译林版 2021 高考 英语 一轮 复习 限时 规范 24 模块 Tomorrow 牛津 译林版
- 资源描述:
-
1、限时规范练24 模块4 Unit 3 Tomorrows world B核心素养关键词:培养学生人与社会、克隆科技的素养能力意识一、阅读理解AThe news that researchers have used cloning to make human embryos for the purpose of producing stem cells may have some people wondering if it would ever be possible to clone a person.Although it would be immoral,experts say it i
2、s likely biologically possible to clone a human being.Since the 1950s when researchers cloned a frog,scientists have cloned dozens of animal species,including mice,cats,sheep,pigs and cows.With mice,researchers are able to use thousands of eggs,and conduct many experiments,to work out these problems
3、.“Its a numbers game,” said Dr.Robert Lanza,the chief scientific officer at a biotech company.“But with primates (灵长类动物),eggs are very precious,and it is not easy to get them to conduct experiments.”In addition,researchers cant simply apply what theyve learned from cloning mice or cows to cloning pe
4、ople.Cloning an animal requires that researchers remove proteins that are necessary to help cells divide.In mice,this isnt a problem,because the embryo that is created is able to make these proteins again.But primates arent able to do this,and researchers think it may be one reason that attempts to
5、clone monkeys have failed.Whats more,cloned animals often have different kinds of abnormalities.These abnormalities are common because cloned embryos have just one parent rather than two,which means that a process known as “imprinting (印记)” does not occur properly in cloned embryos.“Problems with im
6、printing can result in extremely large embryos,which leads to problems with blood flow for the baby,” Lanza said.“The extremely high rate of death and the developmental abnormalities from cloning make cloning people immoral.Its like sending your baby up in a rocket knowing theres a 50-50 chance that
7、 its going to explode.”1.What can we learn from Paragraph 1?A.Animal cloning is illegal.B.Human cloning is possible.C.Human embryos may have new functions.D.Animal embryos can be used for medicine.2.How does the author develop Paragraph 2?A.By making comparisons.B.By showing processes.C.By offering
8、analyses.D.By using statistics.3.How were the experiments on cloning monkeys?A.They have solved the problem with proteins.B.They have been applied to human cloning.C.They were successful.D.They were in trouble.4.How does Lanza feel about human cloning?A.It is risky.B.It is practical.C.It is benefici
9、al.D.It is promising.BIn beautiful rural Montana can be found the town of Livingston.It is close to Yellowstone National Park,which makes it a tourist center.Outdoor enthusiasts gather here each year.Low-income families are more likely to face food insecurity.Around half the students in the Livingst
10、on School District qualify for free or reduced-price lunches,according to local educator Rachael Jones,known as “Farmer Jones.” She is the director of the Livingston Farm to School program,which uses the districts two greenhouses and four gardens to grow food that supplements school meals while offe
11、ring kids hands-on lessons.Jones said,“In many places around the country,if you cant pay for your school meal,you dont eat.Well,here,we dont turn anyone away.”The towns school district and community members started the program eight years ago.Its part of the National Farm to School Network,which aim
12、s to increase access to local food and nutrition education across the country.Jones,who attended public school in Livingston as a kid,has headed up the local program since 2014.Farm to School enriches the curriculum in all of the schools through garden lessons,cafeteria and kitchen lessons,and class
13、room lessons.Research has shown that healthy school meals can improve academic performance,including improved test scores.Though the Farm to School program is not aimed only at lower-income students,Jones said such kids are more likely to eat lunch provided by the school.Eventually she wants to get
14、healthy,affordable meals on the plates of every child in Livingston.It is important for kids to understand where their food comes from.Thats a life-changing experience for them.Jones said,“When I grew up a big force in my life was my grandma Ethel.She taught me from a really early age the value of g
15、rowing your own food.I worked in her gardens with her,and somehow,through all of those experiences eating her tomatoes and canning pickles (把腌菜装罐保存) with her it really built up my trust and knowledge in food systems.Im so thankful for her!”5.Who is “Farmer Jones”?A.She is a local farmer.B.She is a s
16、chool president.C.She is a student in a local school.D.She is a teacher in a local school.6.What is the purpose of the Livingston Farm to School program?A.To contribute to local environmental protection.B.To provide part-time jobs for students.C.To help local farmers make a living.D.To offer student
展开阅读全文
课堂库(九科星学科网)所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
链接地址:https://www.ketangku.com/wenku/file-380813.html


鄂教版七年级语文下册第8课《诗两首》精题精练.doc
