五 阅读下面材料，从方框中所给的A—E五个选项中选出正确选项(其中一项是多余选项)，将其序号填入第1—4小题，并回答第5小题
Life in the 22nd century will be different from that in the 21st century, because many changes will take place.
1. ______ There will be more and more people in the world and most of them will live longer than before.
Computers will be much smaller and more useful, and there will be at least one in every home.
And computer science will be one of the most important subjects at school.
People will work fewer hours than they did in the 21st century, and they will have more free time for sports, watching TV and shopping. 2. ______ And more people will go to other countries for holidays.
3. ______ More land will be used for building new towns and houses. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day. Instead they eat more vegetables and fruit. In this way, people will be healthier.
4. ______ Robots will do dangerous and hard work. Because of this, many people will not have enough work to do. This will be a problem.
A. The pollution will be more serious.
B. Travelling will be much easier.
C. Work in the future will be different too.
D. The population is growing fast.
E. There will be changes in our food too.
5. What other changes do you think will take place?（不超过20词）
________________________________________________________________________________

D
; B
; E
; C
; Education will be different in the future. Students don't need to go to school. They can study at home.

读后词汇拓展。猜出第四大题中画波浪线单词的词性和中文意思，并收入自己的小词典。
ash ______

n. 灰；灰烬