深孔磨削时，应设法提高砂轮的接长轴的（）和改善冷却、排屑条件，以提高内圆的加工精度。

Most people have no idea of the hard work and worry that go into the collecting of those interesting birds and animals that they pay to see in the zoo. One of the questions that is always asked of me is 36  I became an animal collector in the first 37  .The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any 38    was not the traditional “mamma” or “daddy”,39   the word “zoo”, which I would 40  over and over again with a exciting 41   until someone, in groups to 42  me up, would take me to the zoo. When I 43  a little older, we lived in Greece and I had a great 44 of pets, ranging from owls(鹰) to seahorses, and I spent all my spare time 45the countryside in search of fresh specimens to 46  to my collection of pets.
47 on I went for a year to the City Zoo, as a student 48  , to get experience of the large animals, such as lions, bears, bison and ostriches,49  were not easy to keep at home. When I left, I 50  had enough money of my own to be able to 51  my first trip and I have been going 52  ever since then. Though a collector's job is not an easy one and is full of  53  ,it is certainly a job which will appeal 54  all those who love animals and 55 . 

小题1:	A．how B．where C．when D．whether

小题2:	A．region B．field C．place D．area

小题3:	A．clearness B．emotion C．feeling D．affection

小题4:	A．except B．but C．except for D．but for

小题5:	A．recite B．recognize C．read D．repeat

小题6:	A．volume B．noise C．voice D．pitch

小题7:	A．close B．shut C．stop D．comfort

小题8:	A．grew B．was growing C．grow D．grown

小题9:	A．many B．amount C．number D．much

小题10:

A．living B．seeing C．liking D．exploring

小题11:

A．increase B．include C．add D．enrich

小题12:

A．later B．further C．then D．farther

小题13:

A．servant B．keeper C．member D．assistant

小题14:

A．who B．they C．of which D．which

小题15:A successfully    B. gladly       C. nearly       D. luckily 

小题16:

A．pay B．finance C．allow D．provide

小题17:

A．normally B．often C．usually D．regularly

小题18:

A．unhappiness B．sorrows C．excitement D．disappointments

小题19:

A．for B．with C．to D．from

小题20:

A．voyage B．travel C．journey D．Trip