1 . World Environment Day is a UN Environment-led global event,     1     takes place on June 5 every year and is celebrated by thousands of communities worldwide. Since it began in 1972, it has grown to become the     2     (large) of all the celebrations of environment each year. China owns half the world’s electric vehicles and 99% of the world’s electric buses. By     3     (host) World Environment Day 2019, the Chinese government will be able to showcase its innovation and progress toward a cleaner environment.

2 . 单句语法填空
1. After a careful examination, the police finally found the drugs ________（hide）in the walls of her house.
2. She pretended ________（listen）to the manager, but actually she was thinking about something else.
3. Belfast Zoo is home to more than 1,000 animals, many of ________ are in danger of extinction(灭绝).
4. At two years of age, some kids may only use about 30 words ________ others may be able to use 300 words.
5. The key to ________（become）more efficient is to improve the ability to set priorities(优先事项) and focus on one task at a time.
6. The injury could mean this famous basketball player ________（miss）next week’s game.
7. Since then, all Chinese retailers have been banned ________ providing free plastic shopping bags.
8. That fierce wolf had eaten most of his sheep, with only a few sheep ________ (wander) about.
9. ________ you grow rapidly through your teenage years, you will experience a lot of changes.
10. There was some ________ (confuse) as to whether our class had won or lost.

3 . 根据句子，填入适当形式的单词。
1. The place ________ interested me most was the Children’s Palace.
2. We came to a place to _________ they had never paid a visit before.
3. The room _______ Mr. White lives is not very large.
4. ____ is known to all, English is not very difficult to learn.
5. The foreign guests, most of________ were government officials, were warmly welcomed at the airport.
6. They asked about the things and teachers ______ they still remembered in the school.
7. Will you please show me the way to the only tall building _______ stands near the post office?
8. Next winter, ____ you’ll spend in Harbin, I’m sure, will be another exciting holiday.
9. Do you work near the building ________ colour is yellow?
10. He has made a wonderful discovery,________I think is of great importance to science.

4 . 用适当的关系词填空
1. According to the history, Galileo’s ideas were well in advance of the age ___________ he lived.
2. Jennifer is always buying anything she likes, ___________ I suppose is why she is refused to get more pocket money.
3. He was then admitted to a key university, from ___________ he graduated with honors.
4. Self-driving is an area ___________ China and the rest of the world are on the same starting line.
5. ___________ is often the case with old people, my grandfather is fond of doing morning exercises.
6. The last time they went to Scotland was in May, ___________ the weather was fine.
7. Kate, ___________ sister I shared a room with when we were at college, has gone to work in Australia.
8. Many westerners ___________ come to China cook much less than in their own countries once they realize how cheap it can be to eat out.
9. That evening, ___________ I will tell you more about later, I ended up working very late.
10. Nobody knows the reason ___________ he is often late for school.

5 . 单句语法填空
1. Leaving home __________ the first time he felt cheerful and sad by turns．
2. Standing on the top of the mountain is an ancient tower __________（date）back to two hundred years ago．
3. I feel it an honour to have the chance __________（tell）you something about our after-class activities．
4. Unfortunately, human activity is the main reason—__________ this reason the monarch numbers are falling．
5. The oldest zoo in China is Beijing Zoo, __________ was founded in 1906．

6 . 单句语法填空
1. Can you think of another example __________ this phrase can be used?
2. I don’t think the reason __________ he explained at the meeting was reasonable.
3. It’s in the Summer Olympics ______ you have the running races, together with swimming, sailing and all the team sports.
4. It was also a treasure decorated with gold and jewels, ________ took the country’s best artists   about ten years to make.
5. However, the next King of Prussia, Frederick William I, ________ the amber room belonged, decided not to keep it.
6. Have you ever dreamed of playing in front of thousands of people at a concert, ___________ everyone is clapping and appreciating your music?
7. I developed very slowly and it took nearly two hundred years ________ I was built as an analytical machine by Charles Babbage.
8. Last year, we were travelling across the Channel and Jane put a piece of paper _________ her name and address on it into a bottle.
9. Only athletes who have reached the agreed standard for their event will ______ (admit) as competitors.
10. First as a PC (personal computer) and then as a laptop, I ________ (use) in offices and homes since the 1970s.

7 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

For the first time in the history of Peking Opera，four women performed a piece in the China National Peking Opera Company(CNPOC)productions    1    May 27^th at Shanghai’s Majestic Theater. The Peking Opera performance was one of the 51    2    ( produce)showed at the 12^th China Art Festival in Shang-hai. The CNPOC brought together three stories    3    (base)on events (luring the Red Array’s Long March.“They are stories about the    4       (brave)of the Red Army during the Long March，”says Song Chen，head of the CNPOC.“In the play，you can see    5    these soldiers do to sacrifice themselves to help others. People will be    6    (deep)touched by their faith and devotion.”

One of the stories is about three women soldiers    7    (stay)for a night at a farmer’s home in a village. They sleep in the home of a local woman named Xu Jiexiu，and feel sorry for her poor living conditions. When they leave the next morning, a soldier uses a pair of scissors    8       (cut)up the only quilt she has，leaving half of it for the village woman.

Peking Opera styles    9    (develop)over hundreds of years，    10    creates a wide range of roles each featuring distinctive methods of performance and singing styles.

8 . 定语从句对比练习
1. a. This is the house ________ I lived last year.
b. This is the house ________ I bought last year.
2. a.I think Beijing is the most beautiful city, ________ has a population of over 20, 000, 000.
b. Beijing is the most beautiful city ________ I have ever visited.
c. I think Beijing is the most beautiful city, ________ I spent my last summer holiday.
3. a. I'll spend my holiday in Shanghai, ________ lives my uncle.
b. I'll spend my holiday in Shanghai, ________ lies on the coast.
4. a. This is the very room ________ I slept in that evening.
b. This is the very room ________ I slept that evening.
5. a.I will remember the days ________ I spent with you at college.
b. I will remember the days ________ I studied with you at college.
6. a. That is the reason ________ he didn't go to college.
b. That is the reason ________ he told me yesterday.

9 . 语法填空
1. While they are rare north of 88°,there is evidence ________ they range all the way across the Arctic, and as far south as James Bay in Canada.
2. Now Irene Astbury works from 9am to 5pm daily at the pet shop in Macclesfield， ________ she opened with her late husband Les.
3. They were well trained by their masters ________ had great experience with caring for these animals.
4. On the edge of the jacket, there is a piece of cloth ________gives off light in the dark.
5. What students do at college seems to matter much more than _______ they go.
6. The students benefitting most from college are those _______ are totally engaged(参与)in academic life.

10 . 语法填空
1. Lenovo has brought out a new laptop ________   low cost will make it attractive to students.
2. Zhu Yawen’s performances at the CCTV Spring Festival Gara in 2015 were perfect, ________ made a lot of people admire him.
3. He is confident, ________，in my opinion，is most important in modern society.
4. The school library is a resource   ________   you can take advantage to make progress.
5. —How do you understand life?
—It is a constant match ________   the greatest opponent is yourself.