初中Unit 8 I love nature!Time on the earth教课内容课件ppt

这是一份初中Unit 8 I love nature!Time on the earth教课内容课件ppt，共17页。PPT课件主要包含了Warming up，Practice等内容，欢迎下载使用。
1 Read the passage and write true (T) r false (F).
Our planet is abut 4.6 billin years ld. Accrding t the latest research, humans appeared nly 2.5 millin years ag. If we shrten this int ne day, humans appeared in the last tw minutes. Hw did that happen? Midnight n the earth started with a burst f vlcanes. Arund 3 t 4 a.m., life appeared at the bttm f the ceans. At 6 p.m., water and sunlight began t prvide energy fr life. All kinds f plants started t grw. At 9 p.m., the earth gave birth t different creatures. At 11:30 p.m., dinsaurs appeared. They were ne f the largest creatures in the histry f the earth. The last 20 minutes f the day was the “busiest” time: after the age f dinsaurs, it was the age f all kinds f animals, including humans.
arund 3 t 4 a.m.
life appeared
water and sunlight began t prvide energy; plants started t grw
The earth gave birth t different creatures
at 11:30 p.m.
dinsaurs appeared
last 20 minutes
It was the age f all kinds f animals, including humans
2 Read the passage again and cmplete the table.
3 Wrk in pairs. Discuss the questins.
3 D yu knw Wrld Earth Day is n April 22 every year? It is an event that encurages peple t save the earth. What kind f activities can yu d t help save the earth? Talk in grups and share yur ideas with yur classmates.
Save the earth, save ur hme.
There are billins f ________ (star) in the universe. Accrding t the teacher, we need t d ur hmewrk _________(careful). The cat _______ (give) birth t five kittens last week.4. We can get __________(energy) frm the sun.