初中牛津译林版Unit 4 Life on MarsReading教学演示课件ppt

这是一份初中牛津译林版Unit 4 Life on MarsReading教学演示课件ppt，共35页。PPT课件主要包含了Para1，Why，Hope for，red，Mars，Para2，How long，Para 3-4，TFFT，Para 5-6等内容，欢迎下载使用。
Read the article and find ut the keywrd f each paragraph.
Crwded, plluted (ppulatin , pllutin)TransprtFd, water and xygenGravityHmeSchlpinin
Fast Reading
mre and mre plluted
mre and mre crwded
the rapid increase in ppulatin
Hw…deal with?
The clr f Mars:_____________
the slar system 太阳系
It’s between Earth and Jupiter in ur slar system.
ne-half the diameter (直径) f Earth
The size f Mars
tw mns:
Phbs and Deims 火卫1和火卫2
the surface f Mars
The surface f Mars is a little like the surface f Earth.
The lwest temperature will be -133℃ (degrees centigrade) and the highest will be 27 ℃
It may be difficult t imagine, peple will live n the planet Mars.
by the year 2100
At present, spacecraft…
t slw t carry large numbers f passengers t Mars
By the year 2100,spacecraft…
Hw …make it?
travel at half the speed f light
Read Para. 3-4 and d sme T r F exercises
( ) 1. Humans need fd, water and xygen t survive.( ) 2. On Mars, plants culd be grwn and peple culd have enugh xygen and water . ( ) 3. Mars has threes times the gravity f Earth.( ) 4. The bts will be special fr peple n Mars in rder nt t flat ff int space
three-eighths f
Part 3 (Para. 5-6) Advantages f life n Mars
1. Peple will have ________ space.2. ________ will d mst f ur wrk.3. We’ll have mre time t ________.4. Students will study in ________ schls.
Read and fill in the blanks
cnnected t an interplanetary netwrk
Detailed Reading
Page 55, Finish B3
crwded planet
spacecraft
space huses
nline teacher
P54, B2-- Help Daniel find ut the links t the key wrds.
What will be changed n Mars?
Page 55, Finish B4
Advantages f living n Mars
It’s nt _________r________.The ________ is mre cnvenient . Peple will wear special _____Peple will have ______space .______ will d mst f ur wrk.We’ll have mre time t _______.Students will study in ______ schls.
crwded plluted spacecraft bts . mreRbts relax nline
Disadvantages f living n Mars
_______ will be a prblem.Fd wuld prbably be in the frm f ______ and wuldn’t be _____.Space travel might be _____________ make peple feel ________.
ill / sick
uncmfrtable
Difficult sentences
The jurney might take nly abut 20 minutes in spacecraft that travel at half the speed f light.用以光速一半速度飞行的太空穿梭机进行的旅程可能只要花约20分钟的时间。 分析：此句是that连接的定语从句。that引导的定语从句修饰先行词spacecraft, 从句中的动词的人称和数由先行词spacecraft决定。
Cmpared with life n Earth, life n Mars will be better in many ways. 与在地球上的生活相比, 火星上的生活在很多方面将会更好. cmpare with … 意思是“ 与……做比较”。在句中是过去分词短语作状语, 此时with和t可通用。
 Every student wuld have a cmputer at hme cnnected t an inter-planetary netwrk. 每个学生在家里有一台连接星际网络的电脑。 cnnect t 意思是“与……连接”。这里的cnnected t 是过去分词后置作定语,修饰cmputer。当然我们也可以用cnnect … t…结构表示“把…… 和……连接起来 ”。
Task 1 --Wrds
Page 54, Finish B1
1.It ___________(hpe) that we wuld have a better wrld n ____________(人口） f China in 21007 wuld be larger.3. This kind f shes is t ________________(cmfrtable) fr me t earth is a _________.(行星）5.________(人类） can make rbts d sme area is badly p_______. Smething must be dne t prtect the gravity, we will ______(漂浮） in the space.
uncmfrtable
目前；现在变得越来越拥挤 以光速的一半运行 许多 漂入太空中
Task 2 --Phrases
at presentbecme mre and mre crwded travel at half the speed f lightlarge numbers f = a number fflat ff int space