情境应用
1. Do you know the to make a banana milk shake(奶昔)? (step)
2. —Have you ever heard “A thousand - mile journey begins with the first ______ ”?
—Yes. It's a famous Chinese saying.
A. class
B. step
C. break
D. exam
3. —Sally into the role of our group leader.
—Really? I'm expecting fresh air and new ideas from her.
A. ran
B. broke
C. stepped
D. looked

1. steps
2. B
3. C

情境应用
1. Don't . You should eat up the food on the plate. (浪费食物)
2. Playing computer games is . (浪费时间)

1. waste food
2. a waste of time

情境应用
My grandfather used to TV at home after dinner, but now he is used to out for a walk.

A.watch; go
B.watch; going
C.watching; go
D.watching; going

B

题干意思是：“我的祖父过去晚饭后常常在家看电视，但现在他习惯于出去散步。”第一个空，根据题干可知，used to do sth表示“过去常常做某事”，为固定搭配，因此第一个空填动词原形watch。第二个空，根据题干可知，be used to doing sth表示“习惯于做某事或习惯于某事”，是固定搭配，因此第二个空填going。