高中英語人教版 (2019)必修 第三冊Unit 4 Space Exploration精品ppt課件

這是一份高中英語人教版 (2019)必修 第三冊Unit 4 Space Exploration精品ppt課件，共20頁。PPT課件主要包含了 Lesson 6，Video Time等內(nèi)容，歡迎下載使用。
Space Explratin (6)Vide Time
Explring MarsMars is truly a fascinating planet fr peple n Earth. Althugh explring the Red Planet has never been easy, scientists are determined t cntinue their explratins.
1. What d yu knw abut Mars?
It is the nearest planetary neighbur f the Earth.
It has the largest vlcan in the slar system.
It has an atmsphere which is made up mstly f carbn dixide.
2. Hw d peple explre Mars?
By launching the Mars prbe.
Mars prbe cnsists f three parts:
the rbiterthe landerthe rver
1. Mars is the furth planet frm the Sun and the smallest planet in the slar system.2. It is ne f the few planets that we can see with the naked eye.3. Like Earth, Mars has vlcanes, valleys, plar ice caps, seasns, and weather.4. Olympus Mns, the largest vlcan n Mars, is abut twice as high as Munt Qmlangma.
BEFORE YOU WATCH Hw much d yu knw abut Mars? Read the statements belw and decide whether they are true (T) r false (F).
1. Mars is the furth planet frm the Sun and the smallest planet in the slar system.
WHILE YOU WATCH, Check yur answers in Befre Yu Watch.
2. It is ne f the few planets that we can see with the naked eye.
3. Like Earth, Mars has vlcanes, valleys, plar ice caps, seasns, and weather.
4. Olympus Mns, the largest vlcan n Mars, is abut twice as high as Munt Qmlangma.
WHILE YOU WATCHCheck yur answers in Befre Yu Watch.
_____ The prbe separates frm the launch vehicle._____ The lander lands n the surface f Mars._____ The prbe enters the Earth-Mars transfer rbit._____ Cntrllers n Earth guide the prbe int the rbit arund Mars._____ The lander discards the prtective shield and the parachute._____ The space-t-grund cmmunicatins link is created._____ The rbiter and the lander separate._____ The rver transmits data back t Earth and receives rders frm Earth._____ The rver begins t explre the surface f Mars.
WHILE YOU WATCHPut the events in the crrect rder.
AFTER YOU WATCHWatch the vide and think abut the fllwing questins.
1. Hw big is Mars cmpared t Earth?2. Hw lng are the seasns n Mars?3. What is the ice n Mars made f?
It is abut half f the size f Earth.
The seasns n Mars are twice as lng as the seasns n Earth.
Much f Mars’ ice is made frm carbn dixide.
4. Why d s many scientists want t study Mars?5. What percent f missins t Mars have failed?
Because many scientists believe that studying Mars can help us answer sme f the key questins abut ur planet Earth, r even the universe.
Since 1960, mre than half f all attempted Mars missins have failed.
6. What are the three parts f the Chinese Mars prbe?7. Hw lng will it take the prbe t reach Mars?
The Chinese Mars prbe cnsists f three parts: the rbiter, the lander and the rver.
AFTER YOU WATCHWrk in pairs. One student acts as a space expert and the ther acts as a reprter. Use what yu have learnt frm the vide t make up an interview.
A: S, tell me abut Mars.B: Well, it’s ur nearest planetary neighbur, and ne f the few planets that we can see with the naked eye.A: Is it like Earth?B: In many ways it is. Fr example, it has vlcanes, valleys, and seasns like Earth. Hwever, it is much clder than Earth, and its atmsphere is quite thin.A: When des China expect t launch its first missin t Mars?B: Arund 2020.…