Module 3 Life now and then Unit 1 课件（希沃版+PPT图片版）

(共24张PPT)
Module 3 Life now and then
Unit 1 They sometimes work harder.
1.直接+er,+est
2.e结尾，+r,+est
3.辅音+y结尾，把y改为i,再+er,+est
4.重读闭音节，先双写最后一个辅音字母，再+er,+est
5.多音节，more+,most+
old/eld
older/elder
oldest/eldest
不规则变化
good/well
better
best
little
less
least
much/many
more
most
bad/badly
worse
worst
far
farther/further
farthest/furthest
seldom很少
wealthy富裕的
spare
空余的
fear害怕
spare time业余时间
used to过去经常
speak up大声说
wealth财富
deaf聋的
double加倍，双倍
environment
In the past there were fewer tall
buildings.The mountains were
greener.The rivers were cleaner and
there were more fish swimming in
the rivers.
At presentTall buildings take
up more room for crops.The air is
not so clean and fresh as before.The
climate is warmer than before.
Personal health
In the past people lived harder.Less
medicine was known.People got ill and died
more easily and more often.
At present people learn more
about diseases and medicine.So
people are healthier and live longer.
Transport
In the past,there were fewer
cars.People walked or cycled more
often.Transport was slower.
At present there are more
cars.People walk or cycle less than
before.Transport is faster,but there are
more traffic problems.