eg. There are three times as many people as here.

△倍数+the size , height , length, width ... of ....

eg. The house is twice the height of the one here.

第二部分：练习

I. 单项选择

1. _______ the laboratory, you must follow the teacher's instruction.

A. If you in B. Once are in C. Once in D. B or C

2. ─Why was the man taken away by the police ?

─ He _______ the jewelry shop last night , when the shop was robbed.

　A. was noticed enter B. was observed to enter

　C. was observing to enter D. observed someone to enter

3. __________ him and then copy what he does.

　A. Mind B. Glance at C. Stare at D. Watch

4. Can hard work change a person _________ much?

　A. too B. that C. very D. such

5. Nowhere else _________ find the missing wallet just now.

　A. we could B. we can C. could we D. can we

6. Scientists are interested in ________ the sense of smell is ________ pain.

　A. whether;related to B. if ;relating to C. what;related to D.if ; related with

7. The murder was brought in , with his hands _____ behind his back.

　A. being tied B. having tied C. to be tied D. tied

8. I have no doubt ________ you will be warmly welcomed.

　A. whether B. if C. that D. which

9. Tom _________ Jack and Jane has been asked to do the job.

　A. and B. or C. as well as D. besides for

10. ___________ was known to them all that Bob had broken his promise ________ he would give them a rise.

　A. As ; which B. What ; that C. It ; that D. It ; which

11. The theory he stuck to __________ to be reasonable.

A. prove B. be proved C. proved D. be proving