Unit 4 Times change! Period One Starting out & Understanding ideas课件(共65张PPT+ 学案 +练习）

Unit 4　Breaking boundaries Period One　Starting out & Understanding ideas 【课前自主探究】 Task 1: Fast Reading 1.combat Ebola　2.give up on　3.miracles　4.powerful bonds　5.common cause　6.last reported case　7.will continue Task 2: Careful Reading 1—4　CBAD Task 3: Micro-writing 1.to offer　2.despite　3.talking　4.who　5.pride 6.have worked　7.were　8.a　9.absolutely　10.global 【语言知识梳理】 词汇点睛 1.(1)①to collect　②assistant　(2)①assist him in/with ②comes to his assistance 2.(1)①relieved　②relief　(2)①relieve my stress/relieve me of my pressure　②in relief 3.(1)infection　(2)①the most infectious expressions　②be infected with 句型透视 1.①It is/has been many years　②since he had graduated from ③since he left his hometown 2.①it/this is the first time　②we have visited this famous national museumUnit 4　Breaking boundaries Period One　Starting out & Understanding ideas Ⅰ.1.statistics　2.boundary　3.outbreak　4.miracle 5.tackle Ⅱ.1.assistance　2.vitally　3.devotion　4.infectious 5.relief　6.specialist　7.compensation/compensating　8.disinfect Ⅲ.1.against all odds　2.take chances　3.be involved in 4.give up on　5.ended in Ⅳ.1.that I have written　2.It was a relief that　3.since he took over the company　4.were amazed to find Ⅴ.【文章大意】 本文是一篇说明文。文章主要介绍了生物医学突破如何从深海微生物中获得启示,以及这些微生物如何为人类提供新的治疗和诊断工具。 1.C　推理判断题。根据文章第一段“Biomedical breakthroughs sometimes happen in the most unlikely places. Take the deep sea for an illustration. Under extreme conditions, at times of no oxygen, microbes (微生物) not only survive there, but they thrive. This incredible adaptation offers insight into how life evolved billions of years ago and how modern humans may be able to fight infections and diseases—tests used to diagnose (诊断) some viruses were developed with the help of an enzyme (酶)separated from microbes found in the ocean.”(生物医学的突破有时发生在最不可能的地方。以深海为例。在极端条件下,在没有氧气的时候,微生物不仅能在那里生存,而且还能茁壮成长。这种令人难以置信的适应能力让我们了解了数十亿年前生命是如何进化的,以及现代人类是如何能够对抗感染和疾病的———用于诊断一些病毒的测试是在从海洋中发现的微生物中分离出来的一种酶的帮助下发展起来的。)可推知,第一段主要告诉我们有时候可以从海洋微生物身上取得生物医学突破。故选C。 2.A　细节理解题。根据文章第一段“Take the deep sea for an illustration. Under extreme conditions, at times of no oxygen, microbes (微生物) not only survive there, but they thrive. This incredible adaptation offers insight into how life evolved billions of years ago…”可知,海洋微生物即便在极端条件下,也能生存甚至茁壮成长,其拥有极强的适应能力。故选A。 3.A　细节理解题。根据倒数第二段Virginia Edgcomb所说的“To our naked eye, it looks like there’s nothing there but there’s huge potential.”(在我们的肉眼看来,那里什么都没有,但却有巨大的潜力。)以及最后一段“This is tough, but I do hope people realize that the more we can learn about microbes, the better off ... ...