StepIII 语法聚焦自测：

1. - I'm sure Andrew will win the first prize in the final.

- I think so. He ________ for it for months.

A. is preparing B. was preparing C. had been preparing D. has been preparing

A. walks B. walked C. has walked D. had walked

3. So far this year we ____ a fall in house prices by between 5 and 10 percent

A. saw B. see C. had seen D. have seen

A. studies B. studied C. is studying D. has been studying

5. Danny _________ hard for long to realize his dream and now he is popular.

A. works B. is working C. has worked D. had worked

6．--I have got a headache.

-No wonder. You ________ in front of that computer too long.

A．work B．are working C．have been working D．worked

7．Experts have been warning ________ of the health risks caused by passive smoking.

A．at a time B．at one time C．for some time D．for the time

8．Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ___________ English for a year.

A．studies B．studied C．is studying D．has been studying

9．With the help of high technology, more and more new substances ______ in the years.

A．discovered B．have discovered C．had been discovered D．have been discovered

10. -I have got a headache.

-No wonder. You_________ in front of that computer too long.

A. work B. are working C. have been working D. worked

11. The unemployment rate in this district_______ from 6% to 5% in the past two years.

A. has fallen B. had fallen C. is falling D. was falling

StepV Homework 完成练习册31、32页

StepVI总结反刍：

3. Now that she is out of job, Lucy ___ going back to school，but she hasn't decided yet.

A. had considered B. has been considering

C. considered D. is going to consider

4. -______ you ______ him around the museum yet?

A. Have ; shown B. Do ; show C. Had; shown D. Did; show

5. -Hi, Tracy，you look pale.