【导语】进入到高一阶段，大家的学习压力都是呈直线上升的，因此平时的积累也显得尤为重要，高一频道为大家整理了《人教版高一英语知识点必修四：M4 Unit2》希望大家能谨记呦！！
重点单词
hunger sunburn sunburnt struggle super
product expand circulate equip freedom
export suitable chemical confuse mineral
reduce supply bacteria graduate agricultural
whatever summary nutrition disturbing output
hobby affect level awake dangerous
farming harvest grain crop comfortable
therefore underline decade production root
statistics minerals discovery organic goal
avoid comment fertile common
重点短语
lead a … life with the hope of free from
insist on search for be satisfied with
get/feel/be exhausted in addition focus on
rid … of thanks to care about
as well as lead to build up
重点句子
1. Dr Yuan Longping grows what is called super hybrid rice.
2. The special strain of rice makes it possible to produce one-third more of the crop in the same field.
3. Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields.
4. Dr Yuan is quite satisfied with his life.袁博士对生活非常满足。
5. Using his hybrid rice ，farmers are producing harvest twice as large as before
6. … planting peanuts that use the ground’s surface followed by vegetables that put down deep roots.
7. Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer.
8. This also keeps the air, soil, water and crops free from chemicals.
9. In addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition.
10. One dream is not always enough, especially for a person who loves and cares for his people,
11. … Yuan Longping considers himself a framer, ….
