教材习题点拨
COMPREHENDING
Answers to Exerci 1：
Name：Yuan Longping
Nationality：Chine
Age：81 (as of 2011)
Occupation：scientist/farmer
Education：graduated from Southwest Agricultural College in 1953
Dream：to export his hybrid rice so that it can be grown around the globe
Achievement：in 1974，developed hybrid rice which produces 1/3 more than normal rice
Hobbies：listening to violin music七下英语书单词表，playing mahjong，swimming and reading
Suggested answers to Exerci 2：
1 Even when he was a young man，he knew how important it was to produce bigger rice crops.
2 During his early years，much of the countryside was troubled by hunger.
3 As they u his hybrid rice，farmers are producing twice as much rice as before.
福州博物馆
4 He is not interested in buying things for himlf or in having a comfortable life.
5 It does not cost anything to dream for something.
Suggested answers to Exerci 3：
1 Yuan Longping wanted to increa the rice output becau he saw many people go hungry when he was young.
2 I think he is more of a scientist，although he works in the fields like a farmer.His main purpo is not to make a profit for himlf but to study agriculture and u that knowledge to improve farming for farmers everywhere.I do not think he is a business man，becau his goal is not to make money.
3 Becau of his work with developing hybrid rice，it ems that Yuan Longping must be a very patient and careful man.He didn't give up but kept working on his project.He also ems to u his invention to help hungry people around the world.
4 I think Yuan Longping was successful becau he kept working and did not give up.He also grew up in a poor family，so he was very motivated to succeed and help other farmers around China.
5 I mostly agree.I think being rich can cau a lot of problems，but it really depends on the life and attitude of the person who is rich.People who are rich certainly have different problems from people who are not.
6 I think developing other hybrid grains would make a great difference in the problem of world hunger.Hybrid grains that can survive in very dry or very hot areas would be very uful in Africa and other areas.Hybrid grains that cannot easily be killed by incts and dias would be uful around the world.
LEARNING ABOUT LANGUAGE
Discovering uful words and expressions
Answers to Exerci 1用牙膏盒做手工：
1 sunburnt f 3 expand 4 circulate 5 would rather 6 struggle 7 export
8 satisfied with 9 equip 10 crops 11 thanks to
Answers to Exerci 2：
1 statistics，globe 2 super，nationalities 3 Hunger，dia 4 Vietnam，occupations
5 freedom，exported
Answers to Exerci 3：
decade，struggle，expanding，Equipped，output，grain，crops，battles，disturbing
Discovering uful structures
Answers to Exerci 1：
Subject：Since then，finding ways to grow more rice has been his life goal.
Object of preposition：As a young man，he saw the great need for increasing the rice output.
Object of preposition：Yuan Longping arched for a way to increa rice harvests without expanding the area of the fields.
Object of verb：He enjoys listening to violin music，playing mahjong，swimming and reading.
Subject：Spending money on himlf or leading a comfortable life also means very little to him.
Subject：Just dreaming for things，however，costs nothing.
Object of preposition：He awoke from his dream with the hope of producing a kind of rice that could feed more people.
Answers to Exerci 2：
1 Helping people in need of help is nice.一千克等于多少克
2 Growing super hybrid rice is not easy.
3 Learning more about farming is not difficult.
4 Doing rearch in the countryside is not as easy as in the city.
5 Getting rid of hunger is very important for some African countries.蚝油牛肉的做法
6 Explaining this again is important or we will confu the students.
Answers to Exerci 3：
1st group：to do
2nd group：doing
1st group：promi，fail，hope，afford，plan
2nd group：enjoy，finish，mind，miss，keep
3rd group：try，stop，begin，forget，like，start
Answers to Exerci 4：
1 to e 2 learning 3 having 4 to experiment 5 trying out 6 to find out火车向着韶山跑 7 to develop
8 to fail 9 owning 10 nding
词牌名
USING LANGUAGE
Reading
Suggested answers to Exerci 1：
1 They are a great way to stop crop dia and increa production.安慰的话
2 They can damage the land by killing helpful bacteria and pests and by staying in the ground and underground water for a long time.They damage people's health by building up in their bodies and leading to cancer or other illness.
