5. harrow vt to pull a harrow over land 耙地
The land has been harrowed.
6. herbicide n substance that is poisonous to plants, used to destroy weed 除草剂
He bought herbicide to destroy weed.
派生词汇：Herbicidal adj 除草的
7. germinate vt to cause sth start growing 使某物发芽，萌芽
The plentiful rain germinated my plants.
vi to begin to sprout or grow 开始发芽或发育
The cabbage germinated within a week.
派生词汇：Germination n 萌芽，发育
8. dormant adj temporarily inactive 潜伏的，休眠的Many plants lies dormant throughout the winter.
必背搭配：Lie dormant 潜伏，冬眠
9. unyoke v to free from chains or unfair limitation 解除束缚，
The cow was unyoked.
10.tamarind n (edible fruit of) a tropical tree罗望子树(果)
There are many tamarinds in Africa.
Exercises 1.The newly published review on the book has ___ much controversy.
2.China is lacking in____ land.
3.The land must be _____ before we plant the grains.
4.Seeds _____ in the spring.
5.Her feelings of affection are ____ but easily awakened.
答案：
1.evoked
2.arable
3.harrowed
4.geminate
5.dormant