一、根据句意及所给中文提示、首字母或英文解释，写出句中所缺单词，每空限填一词。
1. The most important thing is not the moment you reach the end, but each (一步)you take forward in your life.
2. Recent (研究)on deaf children has produced some interesting findings about their speech.
3. In 2022，three Chinese (宇航员)gave a science lesson from the Tiangong space station. They showed how plants grow in space.
4. The newly invented medicine will (测试)on mice many times before it enters hospitals.
5. — Who is the person you admire most?
— Qian Xuesen，the "Father of Chinese aerospace". He is the p of China.
6. With the country's f development，there is no doubt that China will do more for the world.
7. Water covers a large proportion(部分)of the Earth's (the outside or top part of sth.).
8. Liu Chuanjian is one of the most outstanding (a person who operates the controls of an aircraft，especially as a job)that I have ever known.

1. step 2. research 3. astronauts 4. be tested 5. pride 6. further 7. surface 8. pilots

二、根据句意或句子的语法要求，用括号中所给单词的适当形式填空。
1. I hope to take (fly)lessons this summer.
2. He ordered his daughter (eat)up two eggs every morning.
3. These students are always interested in (watch)spacecraft models at the science museum.
4. The food was good but the (serve)was very slow.
5. People under 18 are not allowed (drive)cars according to traffic laws.
6. After its 23 - day travel，*Chang'e - 5* (bring)samples back home from the Moon in 2020.
7. Mr Wang explained this Maths problem as (slow)as possible so that the children could understand it.
8. The unexpected rain (cut)our picnic short，so we had to pack up quickly and go home early.

1. flying 2. to eat 3. watching 4. service 5. to drive 6. brought 7. slowly 8. cut

三、单项选择。
() 1.— How was your trip to Inner Mongolia?
— Very exciting. I learnt to ride a horse .

A.for the first time
B.at first
C.first of all
D.at the same time

1. A