book4 module4 great sientists
learning paper2 itensive reading
learning aims: to learn about yuan longping and his achievements
importance and difficulty: the passive voice and “by+doing”
part one: read the passage on page32 and do the following exercises.
1. match the main ideas with each paragraph.
paragraph 1 as a boy he was called “the student
who asked questions”
paragraph 2 as a young teacher, he began experiments
in crop breeding
paragraph 3 yuan longping is a leading figure in
the rice growing wold.
paragraph 4 the yield of the ew hybrid rice is much greater than that of other types of rice grown in pakistan.
paragraph 5 he discovered a new type of rice.
paragraph 6 his discoveries have brought in great profit.
2. activity 2 true or false on page 32
3. activity 3 and 4 on page 33
4. put the sentences in order of time when they happened.
1) the results of his experiments were published in 1966.
2) chinese rice production rose by 47.5%.
3) he study agriculture in college.
4) he began experiments in crop breeding.
5) his rice was exported to other countries.
5. discussion:
1. do you think the title is a best one? can you think of a better title?
2. what do you think has made yuan longping become a great scientist?
what can we learn from him?
part two: language points
ⅰ.fill the blanks with the given verbs, paying attention to the voice, and then translate the sentences.
1. rice ______________(grow) in many other asian countries.
2.yuan longping was born and _______________(bring up ) in china.
3. as a boy he ______________(educate) in many schools and ____________(give) the nickname, “the student who asks questions”.
4. the resultsof his experiments ___________(publish) in china in 1966.
5. finally, a naturally sterile male rice plant ____________(discover).
6. researchers ____________________(bring in) from all over china to develop the new system. the research ____________(support) by the government.
7. 50000 square kilometres of rice fields ____________(convert) to growing vegetables and other cash crops.
8. yuan longping’s rice _____________(export) to other countries.
9. in pakistan rice _______________(grow) in many parts of the country.
10. the new hybrid rice _________________(develop) by yuan longping high-tech agricultural company of china.
list the forms of passive voice of different tenses.
一般现在时：_______________ 一般过去时：____________
一般将来时：_______________ 现在完成时：______________
过去完成时：_______________ 现在进行时:________________
过去进行时:_________________
ⅱ.he thought there was only one way to do this----by crossing different species of rice plant. (if he crossed different species of rice plant)
___________________________________________________________
you can get a job if you study hard. (用by改写)
researchers learn things when they carry out experiments.(用by改写)
you will become a better player if you practise often. (用by改写)
1. 在当前的世界，水稻是主要食粮。中国是世界上最大的水稻产地。
(staple ;producer)
2. 在水稻种植界，中国科学家袁隆平是一位重要人物( world; leading)
3. 作为一个年轻的教师，他开始了作物育种的实验。(experiment)
4. 首先，他对不同种类的水稻进行实验。接着，他开始寻找一种特殊的稻种。(experiment ; search)
5. 由于他的发现，中国的水稻产量在20世纪90年代增长了百分之四十七点五。(as a result of; rise by)
6. 它的产量远高于巴基斯坦其他种类的水稻。(yield)
