Unit 4 Life on Mars Revision 课件 (共22张PPT)

课件22张PPT。Unit 4 Life on Mars
RevisionTo be a space travellerknowledgecourageimagination…Preparing to Flyair tankdried foodspace helmetspecial bootsnotebook
computerpower
packsleeping bag* Things to takeMoving to Mars* A quiz on MarsMars is named after the Greco-Roman god of war which is the second smallest planet in the solar system.
It takes Mars about 3 Earth years to circle around the Sun once.
Mars is a planet that has an environment very different from that of the Earth.
The gravity on Mars is only about three-eighths of that on the Earth.
Mars has much thicker air than that on the Earth.
2 similar tothinnerLife on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransportspacecraft at presentspacecraft by 2100They are _________ and it would take ________ to fly to Mars.too slowmonthsThey travel at ______________
but the journey might be _____________. Many people would feel ___. the speed of lightuncomfortableillWhich one do you prefer? Why?Life on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransportsurvive… water, oxygen, food….
know whether…enough…
not sure… plant…
food… in the form of… tastyWhat would the food be like?If I’m a foodie, I will …Life on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransportPeople would have to wear boots that are ________ designed to prevent themselves from ________ off into space.What would people wearing while walking around?speciallyfloatingAre you a fashion guy?
Do you like dressing like that?Life on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransport1. People would have _______ space.
2. _______ would do most of their work.
3. They could have more time ________.
moreRobotsto relaxWhat kind of home would people enjoy?What kind of home do you live in?
Which one is better?Life on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransportThere would probably be no schools on Mars.
Every student would have a computer at home _________ to an ______________ network.
They would study at ______ schools with “e-teachers”.What would the schools be like?connectedinterplanetaryonlineWhat’s your opinion about the online courses you are taking these days?Life on MarsEntertainmentSchoolClothesFoodLife on marsHome…* Both feet on the groundTransportOnline games
Online theatres
Travel to 2 Martian moons
Amazing low-gravity basketball games
…How would people relax after work or study?What other forms of entertainment can you think of?Moving to Mars* Sharing your opinionsLife on Mars / Earth is …, because…Advantages Disadvantages People might live in houses which has huge comfortable rooms.If there is no fresh food, meals will not be as tasty as they are today.It would be wonderful to live in a planet that has no air pollution.Scientists are not sure if there are dangerous aliens on Mars.……People might live in houses which has huge comfortable rooms.
→ People might live in houses with huge comfortable rooms.
If there is no fresh food, meals will not be as tasty as they are today.
→ Meals will not be as tasty as they are today without fresh food.
Scientists are not sure if there are dangerous aliens on Mars. (existence存在)
→ Scientists are not sure of the existence of dangerous aliens on Mars.
Different clauses or simple sentences1. We can rewrite some adverbial clauses in simple sentences with prepositional phrases.
我们可以用介词词组把某些状语从句改写成简单句。
when引导的时间状语可用at the age of转换为简单句
so that引导的目的状语从句可用in order to或so as to转换为简单句
so … that …引导的结果状语从句的可用 enough to结构转换为简单句
if not/no 引导的条件状语从句可借助without短语转化为简单句
because引导的原因状语从句用短语because of可转换成简单句
2. We can rewrite some object clauses in simple sentences with prepositions like of and about.
我们可以用介词of, about等把部分宾语从句改写成简单句。
3. We can rewrite some defining relative clauses in simple sentences with prepositions like with and in.
我们可以用介词with,in等把部分部分限制性定语从句改写成简单句。
Life in space Do you think that living in space might be a problem?
Astronauts (spacemen) living in space have the same hygiene (卫生) needs as people do on the Earth. However, because the gravity is very weak, astronauts take care of themselves in different ways. For example, they use a kind of special matter to wash their hair. If they don’t use that special matter, the water will float everywhere.
Astronauts have three meals a day: breakfast, lunch and dinner. Some food can be eaten in the natural form such as fruit. They can also enjoy noodles which require hot water in them.
Do you think about the problem of living in space?because of the low gravity,astronauts take care of themselves in different ways. The water will floateverywhere without using that special matter.They can also enjoynoodles with hot water in them. My Conquest is the Sea of Stars.
-- Legend of the Galactic Heroes