Ⅰ.單詞拼寫
1.His father works in a chemical ________(研究院) in our city.
2.There are now more than six ________(十億) people living on the earth.
3.Though he was defeated,he was highly respected by his ________(對(duì)手).
4.It is rather ________(殘忍的) for humans to keep the animals in small space.
5.For ________(例子),the number of pandas is on the increase now.
6.That man ________(聲稱) that he would go to the court to demand for his rights.
7.This kind of change is called a ________(化學(xué)的) change.
8.The ________(藥物) tend to cause drowsiness.
【答案】1.institute 2.billion 3.opponent 4.cruel 5.instance/example 6.claimed
7.chemical 8.drugs