Ⅰ．单词拼写
1．He wrote a very excellent ________(散文), for which he was highly praised by the headmaster.
2．Experts strongly recommend that farmers should use more ________(有机的) fertilizers.
3．His father works in a chemical ________(研究院) in our city.
4．There are now more than six ________(十亿) people living on the earth.
5．Though he was defeated, he was highly respected by his ________(对手)．
6．It is rather ________(残忍的) for humans to keep the animals in small space.
7．For ________(例子), the number of pandas is on the increase now.
8．That man ________(声称) that he would go to the court to demand for his rights.
9．This kind of change is called a ________(化学的) change.
10．Taking ________(毒品) is not allowed in most countries of the world.
