Ⅰ.单项选择。(共10小题;每小题1分，计10分)
( )1.In our school library there________a number of books on science and the number of them________growing larger and larger.
C.has;is D.are;has
( )2.She used to________in the morning，but now she is used to________ at night.
A.read;read B.read;reading
C.reading;read D.reading;reading
( )3.I think drinking milk is good ________ our health.
C.with D.in
( )4.—Your sweater looks nice.Is it made of wool?
—Yes，and it's made ________ Shanghai.
C.from D.of
( )5.—Wow, your sweater is very beautiful! How much is it?
—Thank you.It ________me 30 dollars.
C.cost D.took
( )6.While we were running on the playground，Jack suddenly stopped________and lay on the ground，so we all stopped________what was wrong with him.
A.to run;to see B.running;seeing
C.to run;seeing D.running;to see
( )7.This is the best place ________ is suitable for animals to live in.
C.which D.whose
( )8.I've ________ him，but I don't ________ him.
A.heard of;know B.known;hear of
C.known;know of D.heard from;know of
( )9.To save water，you should ________ the tap after you finish washing.
C.turn off D.turn down
( )10.It's important to ________ paper to save trees.
