人教版高中英语必修三教学案Unit 4 Section 1含答案Word文档格式.docx

1、 People will stay and study there with many of the things they have at home. Laboratories, living rooms and power stations are being built.The ISS is the most ambitious and expensive space program ever. Billions of dollars are being spent on it every year. Scientists hope that the ISS will be a step

2、pingstone for future space exploration.“The ISS will help us better understand the human body, explore space and study the earth. It can help us make life on the earth better，”said Kathryn Clark, an ISS scientist.China is not an ISS country, but it has helped with some of theexperiments. China sent

3、some rice up to the ISS to find outwhat space would do to it.The ISS is not finished yet. More than 100 parts need to beput on. Scientists hope it will be finished as soon as possible. After its finished, more than 90% of the worlds population will be able to see the Space Station. So keep looking u

4、p, and maybe youll see it get bigger.2019-2020年人教版高中英语必修三教学案：Unit 4 Section 1（含答案）原文呈现读文清障HOW LIFE BEGAN ON THE EARTHNo one knows exactly how the earth began, as it happened so long ago. However, according to a widely acceptedtheory， the universe began with a “Big Bang” that threw matter in all dire

5、ctions. After that, atoms began to form and bine to create stars and other bodies.For several billion years after the “Big Bang”， the earth was still just a cloud of dust. What it was to bee was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth

6、 became so violent that it was not clear whether the shape would last or not. It exploded loudly with fire and rock. They werein time to produce carbondioxide， nitrogen， water vapour and other gases, which were to make the earths atmosphere. What is even more important is that as the earth cooled do

7、wn， water began to appear on its surface.as it happened so long ago是as引导的原因状语从句。according to“根据”，后跟名词、代词等，不跟me, us, view, opinion等词。widely accepted广泛接受的theory/IrI/n学说；理论begin with （start with） 从开始，起源于Big Bang宇宙大爆炸；创世大爆炸in all directions （in every direction）朝四面八方atom/tm/n原子billion/bIlIn/pron.&n.&adj.

8、英万亿；美十亿a cloud of dust一团尘埃a cloud of 一般用来修饰不可数名词。globe/lb/n球体；地球仪；地球global/lbl/adj.全球性的；全世界的violent/vaIlnt/adj.猛烈的；激烈的；强暴的it为形式主语，whether从句为真正的主语。in time to do sth./for sth.及时做某事；来得及做某事in time及时；终于carbon dioxide二氧化碳carbon/kbn/n碳dioxide/daIksaId/n二氧化物nitrogen/naItrdn/n氮water vapour 蒸气；水蒸气vapour/veIp/

9、n水蒸气；蒸气atmosphere/tmsfI/n大气层；气氛cool down 凉下来，冷却地球上生命的起源第12段译文没有人确切知道地球是怎样开始的，因为在很久以前它就形成了。然而，根据一种普遍为人们所接受的理论，宇宙起源于一次大爆炸，这次大爆炸将物质投射到四面八方。然后，原子开始形成并结合成恒星和其他天体。大爆炸后好几十亿年过去了，地球还只是一团尘埃。（随后）它变成什么没人确定，直到4538亿年前，这团尘埃才慢慢地形成一个固态的球体。地球变得如此激烈动荡，以至于不知道这个固体形状是否会继续存在下去。它（地球）猛烈的爆炸喷出了烈火和岩石，最终产生了二氧化碳、氮气、水蒸气和其他气体，从而形成

10、了地球的大气层。更重要的是，随着地球冷却了下来，地球的表面开始出现了水。Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water all

11、owed the earth to dissolveharmful gases and acids into the oceans and seas. This produced a chain reaction， which made it possible for life to develop.Many millions of years later, the first extremely small plants began to appear on the surface of the water. They multiplied and filled the oceans and

12、 seas with oxygen， which encouraged the later development of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians， were able to live on land as well as in the water. Later when the pl

13、ants grew into forests, reptiles appeared for the first time. They produced young generally by layingeggs. After that, some huge animals, called dinosaurs， developed. They laid eggs too and existed on the earth for more than 140 million years. However, 65 million years ago the age of the dinosaurs ended. Why they suddenly disappeared still remains a mystery. This disappearance made possible the rise of mammals on the earth. These animals were different from all life forms in the past, because they gave birth to young baby an