Unit 5 The power of nature课时作业

Learning about language

Ⅰ.单句语法填空

　　1．It was officially(official)acknowledged that the economy was decreasing.

　　2．"I didn't mean to upset you，"he said mildly(mild)．

　　3．He was hit by a falling tree and killed on the spot.

　　4．Many scientists have been working hard to find ways for people all over the world to be in harmony with nature.

　　5．The PE teacher stood in the middle of the playground，surrounded(surround)by a group of students.

　　6．The boy sat in the classroom doing(do) his homework.

　　7．They had difficulty(difficult) in keeping in touch with each other that they decided to move to the same city.

　　8．The announcement(announce)of their marriage would appear in the local newspaper next week.

　　9．Easton，you will go to prison where you will have time to reflect(reflect)on your own activities which brought you there.

　　10．Hearing the bad news，he was at a loss.

Ⅱ.单句改错(每小题仅有1处错误)

　　1．I was so nervous when asked to give a performance before the class that I felt in a loss.

　　in→at

　　2．I was sure the two students would live in harmony to each other soon.

　　to→with

　　3．This is the school which I studied for three years.

　　which→where或which前加in

　　4．I want to be myself. In other words, I am tired with having to pretend all the time.

　　with→of

5．There are many beauty tourist spots in Beijing，such as the Great Wall, the