一、根据句意和首字母提示补全单词
1. The p of our environmental activity is to promote low-carbon living.
2. He a to me immediately after he stepped on my foot.
3. The teacher e the classroom with exercise books in her arms.
4. There are p of books for us to choose from in the library.
5. The teacher explained the rules and l asked everyone to practise in pairs.

1. purpose 2. apologized 3. entered
4. plenty 5. lastly

二、用所给单词的适当形式填空
1. Nature lovers can enjoy a large number of natural (wonder) in China.
2. Choosing the right pet is an important thing, so we spent time (research) different animals before picking our new pet.
3. Different (level) of books in the library are suitable for students of different ages.
4. We saw several (waterfall) during our trip to the mountains. They fell from very high places.
5. Located in the northwest of China, Xi'an is seen as one birthplace of the country's (civilize).
6. His cold was even (bad) than yesterday. We had to take him to the hospital.
7. We should try our best to protect the environment, or the (die) rate (比率) of animals will increase.
8. The teacher explained the word to us clearly and (simple) so that we could understand better.
9. (nature) resources are important for us. And we should use them wisely.
10. The Great Wall is a famous (attract) and many people visit it every year.

1. wonders 2. researching 3. levels
4. waterfalls 5. civilization 6. worse
7. death 8. simply 9. Natural
10. attraction

三、根据汉语意思完成句子，每空一词
1. 在地球上，笑容是最美的语言。
A smile is the most beautiful language .
2. 桂林的漓江是中国著名的自然奇观之一。
The Li River in Guilin is one of the famous .
3. 顺便问一下，你看过新上映的那部电影了吗？
, have you seen the new movie that's out?
4. 我们无论如何都要赢得这场比赛。
We must win the game .
5. 你应该尽快回复他的邮件以表示尊重。
You should reply to his email to show your respect.

1. on earth 2. natural wonders 3. By the way
4. in any case 5. as soon as possible