1 . There are many reasons________English is so widely used around the world. （用适当的词填空）

2 . The constantly rising sea level is one of the reasons ________ we must take action to protect the environment. (用适当的词填空)

3 . John has been unwell, and this may be the reason ________ he lost the match. (用适当的词填空)

4 . I don’t know the reason ________ you quarreled with him. (用适当的词填空)

5 . The reason ________ I want to go abroad for study is to broaden my horizon. (用适当的词填空)

6 . Do you know the reason ________she got so angry yesterday? （用适当的词填空）

7 . 语法和词汇运用
1. As you can see, the reason________I' m here to tell the story is
2. _______I made the right decision.
3. __________I do is based on powers we all have inside us.
4. Beneath this_______(amaze) sky, we see a sleeping village and a dark, lonely tree.
5. Asking questions_______(be) the easiest way to promote active learning.
6. Not only is he known as a superhero in the Superman films, but he is also_______(regard) as a superhero to many in real life.
7. His unusual use of colour has led experts to think that Van Gogh' s mental illness may have________(affect) his sense of sight.
8. The Empire of Light is a series of paintings by Belgian artist Rene Magritte. Between 1953 and 1954, he painted the same _______(景色，场景)27 times.
9. It is by acting together, in this exciting way , that we can________ (参与，包含) thousands-millions-of people, and this is what is going to change the world.
10. Active learners do not accept they learn. They_______ (尝试) to find the truth at the heart of each idea.

8 . The reason _________ I am fascinated by this painting is that it shows a mysterious scene. (用适当的词填空)