to complete the job on time, they set out to work immediately. A. Determined B. Be determined C. Having determined D.To be determined 题目和参考答案——青夏教育精英家教网—

Directions: Complet the following passage by filling in each blank with one word that best fits the context.

When very small dinosaur bones were found in a Germany mine people thought they were from baby dinosaurs. 48 , scientist Martin Sander's work shows that they were probably fully grown and belong to the smallest giant dinosaur species ever found.

Growth marks on dinosaur bones are similar 49 growth rings on trees. The rings are far apart while the animal is young and growing quickly. 50 get closer as growth slows. "It is exactly these tight ring marks that we found in the fossil (化石) bones," says Sander. So the fossils must have been from adult animals.

51 was this German dinosaur so much smaller than other giant dinosaurs, which grew up to 45 metres long and weighed as much as a thousand humans?

150 million years ago, most of Germany was underwater. Scientists think that 52 water levels rose, there was less and less land and food available. The dinosaur was forced to adapt and evolved into 53 smaller animal needing 54 space and food.

Since 1998, scientists have dug up more than 1,000 dinosaur fossils in the mine. It is one of the few places in the world 55 the bones and footprints of dinosaurs have been found together.

When I was young, I belonged to a club that did community sevice work．There was one specific event that was unusual for me. I spent three or four hours handing out warm dinner to the homeless out in the streets. After that I went to a homeless shelter not far from the Bay Bridge.

I was in high school and at the time my sister was too young to 36 . She wanted to help, 37 she made four or five dozen chocolate chip cookies for me to 38 and hand out to people. When getting to the homeless shelter 39 passed out the remaining meals. 40 , I began making sandwiches and 41 them with the crowd. I had the containers with my 42 cookies in them and began to 43 , offering them to anyone near me.

I 44 an old gentleman and said, “sir, would you like a cookie?” He stopped and turned around, 45 me right in the eye and said, “What did you say? Did you call me sir?” I told him I 46 , and his eyes 47 a little bit and he said, “No one has 48 called me sir.” So he 49 .

It struck me.

I explained I had been raised that 50 color and social status, everyone deserved respect. It 51 me to think that just because he was homeless, no one 52 him the honor. It broke my heart, and I 53 .I just didn’t understand 54 no one ever called him sir? I had never thought that anyon e was below me because I wasn’t raised that way. Every 55 person deserves to be treated with dignity. Years later, I still carry that memory and the lessons it taught me. Sometimes, what we take for granted can really make a difference in someone’s life.

How have you made a difference to others? How have others made a difference to you?

1.A．participate B．involve C．choose D．go

2.A．however B．but C．yet D．so

3.A．bring B．fetch C．collect D．take

4.A．I B．you C．she D．he

5.A．First B．Next C．Third D．Finally

6.A．shared B．gave C．helped D．assisted

7.A．classmate’s B．schoolmate’s C．sister’s D．family’s

8.A．walk around B．knock around C．come around D．stand around

9.A．went B．came C．approached D．met

10.A．glanced B．stared C．glared D．looked

11.A．had B．called C．would D．do

12.A．watered B．cried C．tore D．dropped

13.A．already B．ever C．still D．yet

14.A．was complet ely frightened B．was not a little confused

C．was completely taken aback D．was not a bit surprised

15.A．in spite B．regardless of C．concerned about D．for fear of

16.A．strengthened B．saddened C．frightened D．pleased

17.A．handed B．afforded C．provided D．supplied

18.A．had no choice but to cry B．couldn’t help to cry

C．had no right to cry D．couldn’t help but cry

19.A．what B．when C．whether D．why