【小題1】 If there were more trees on the earth, there would be l_______ pollution.
【小題2】 I don’t like eating lemon. It t_______ too sour.
【小題3】 The injured people were taken to hospital i __________  after the accident.
【小題4】 Look, the expression on his face s       that something bad must have happened to him.
【小題5】 According to an ancient Chinese legend, the emperor Shen Nong d___________ tea.

根據(jù)短文內(nèi)容和首字母的提示，把文中所缺詞語補充出來，使短文完整、正確、通順。（每空限填一詞，將其填寫在文后相應便會2的橫線上）
Did you know that tea, the most popular drink in the world (after water), was invented by accident?Although tea wasn't brought to the Western world u 【小題1】 1610, this beverage was discovered over three thousand y【小題2】 before that. According to an ancient Chinese legend,the emperor Shen Nong discovered tea when he was b 【小題3】 drinking water over an open fire. Some leaves from a nearby bush fell into the water and remained there for some time. The emperor noticed that the leaves in the water produced a pleasant smell. L 【小題4】 he decided to taste the hot mixture. It was quite d  【小題5】 And in this way,one of the world's favorite drinks was invented.

根據(jù)句意和所給的首字母提示，補全句子中的單詞。

6. If there were more trees on the earth, there would be l_______ pollution.

7. I don’t like eating lemon. It t_______ too sour.

8. The injured people were taken to hospital i __________  after the accident.

9. Look, the expression on his face s        that something bad must have happened to him.

10. According to an ancient Chinese legend, the emperor Shen Nong d___________ tea.