1 . Do you know the reason ________ he didn’t vote for your party? (用适当的词填空)

2 . Tom explained to his teacher the reason ________he came late. （用适当的词填空）

3 . The reason ________ she was late for the exam, was that she got stuck in a traffic jam.

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 . 用适当的关系副词填空
1. Somehow they manage to travel around 4,000 kilometres south and find their way to places __________ they will spend the winter．
2. The solution to the mystery of the monarch’s amazing ability comes at a time __________ it is in serious trouble．
3. Unfortunately, human activity is the main reason __________ the monarch numbers are falling．
4. Two giant pandas from China were welcomed to the Chinese-style compound _________ they were to live．
5. On 30th May, after the preparations were complete, the day finally came __________ the pandas met their fans for the first time．
6. People were excited—the zoo is the only place in the country __________ it is possible to see pandas．
7. The main reason __________ people were so excited is that pandas are just so cute！
8. In the evening __________ the sun sets, we go out and sit on the balcony __________ we can watch lots of different animals come down to drink at the waterhole．

6 . 用括号内所给动词的正确形式填空或在空白处填入一个正确的关系代词/关系副词
1. The police found that the shopping mall had been broken into and a lot of valuable things__________(steal).
2. The plane __________(take) off at 10:10. That is, it is leaving in ten minutes.
3. A new library is being built now and __________(complete) next month.
4. They _________(try) every means to save the wounded soldier up to now.
5. —Can I use your phone?
—Sorry, my phone _________(use) now.
6. He bought a book the other day, ___________ author is a middle school student.
7. The reason ____________ he was late again was that he missed the first bus.
8. On the blackboard the teacher wrote a sentence, the meaning of __________I don’t understand.
9. The factory _____________ his father works is in the west of the city.
10. He is just the student _____________you want to make friends with.

7 . 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.