Unlike modern animal scientists, dinosaur scientists cannot sit on a hillside and use telescopes to watch dinosaurs in order to know how they lived and whether they were good parents Instead, they have to search hard for information from dinosaurs’ fossils(恐龙化石) because dinosaurs died out millions of years ago.
It’s very difficult for the scientists to reach an agreement because different results can be got from the same fossils. Many fossils of the same kind of dinosaurs have been dug out from one place. They might have formed when an entire group of dinosaurs got stuck(陷入)all at once. Or they might have been the result of dinosaurs getting stuck one after another over a course of a few centuries. Thus we can say that dinosaurs might have in the first case lived in big groups and in the second lived alone.
Though there are two different results, dinosaur scientists now generally agree that at least some kinds of dinosaurs lived in big groups. “That’s pretty much settled at this point.” Says Paul Sereno, A kind of dinosaurs called Sauropods left behind tracks in the western United States that appear to run north and south, suggesting that they even moved long distances together.
As to whether dinosaurs cared for their young, dinosaur scientists have turned to the closest living relatives of dinosaurs ― birds and crocodiles ― for possible models. Birds give a lot of care to their young, while crocodiles just help their young to the water. The discovered fossils of dinosaurs sitting on their eggs and staying with their young suggest the parents were taking care of their babies, but we still cannot say that all dinosaurs did the same.
There is still a long way to go before the above questions could be answered. Dinosaur scientists will have to find more proof to reach an agreement.
1.Dinosaur scientists can get information directly by .
A. studying dinosaur fossils
B. examining modern animals
C. watching dinosaurs
D. using telescopes
2.What is pretty much settled according to Paul Sereno?
A. Half of the dinosaurs lived alone.
B. Most dinosaurs moved long distances.
C. Many dinosaurs settled in the north.
D. Some dinosaurs lived in big groups.
3.Dinosaur scientists can probably know whether dinosaurs were good parents by .
A. watching many kinds of animals
B. studying dinosaurs’ living relatives
C. following the tracks left behind
D. working on dug-out dinosaur eggs
4.Which of the following the according to the 4th paragraph?
A. Birds hardly ay attention to their young.
B. Baby crocodiles can look after themselves well.
C. Some dinosaurs took care of their young.
D. Birds and crocodiles take good care of their young.
Have you ever dreamed of having a fashionable watch of great value?
A small watchmaker in Switzerland in 1922 designed the first automatic(自动的)watch to show the day, month, and date, Only seven of these splendid watches were ever made and these watches were almost lost to history. Today, it is so hard to get an original (首批的) watch that some watch historians are even willing to offer $ 200,000 for one.
These watches attracted a lot of people for their splendid color, fashionable style, and new uses in the 1920s. The owners of the watches were admired and set apart from the crowd. Because the number of the original watches is very limited, owning such a watch will make you feel very special.
Today, you are offered the same kind of watch with improvement. It has a 24-jewel mechanical(机械的) movement, the kind desired by watch collectors, The watchmaker has made the movement of the watch much more modern with an automatic rotor(上弦装置) so that the watch never needs to be wound by hand. The watches come in a very beautiful case with a crocodile design on it. To get a watch in such a perfect design means to get a chance to know a piece of watch-making history and to wear such a watch will show your personal taste and social position.
You can get the watch either in person or by mail all an affordable price. You will also receive good service from the watch seller. If you are not satisfied with the watch after you get it, you may simply return it within 30 days. Don’t miss the chance to realize your dream.
1.The original automatic watches are valuable because .
A. the watches were made many years ago
B. the watches were made by a Swiss watchmaker
C. only rich people can afford the watches
D. only a few watches of the kind were made
2.Watch collectors want to get the improved watch, especially for its
.
A. mechanical movement
B. splendid color
C. fashionable style
D. new uses
3.The purpose of the passage is to encourage the readers to .
A. buy the watch
B. return the watch
C. wear the watch
D. receive the service
4.The passage is probably taken from a .
A. report
B. magazine
C. text book
D. science book
阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
It was a bright spring afternoon when Freda told me she wouldn’t need me any more. I had just finished my four-hour work － 1up and down the stairs of her three-storey home, cleaning the floor and washing the dished. She was 2jeans and a sweater, sitting at the table I had just 3. a pile of papers spread around her. Her husband’s 4was going to be reduced by thirty percent. And they were trying to live as if it had 5happened. I felt sorry for her， but I also felt a sense of 6.
I had been cleaning Freda’s house for five years and had 7an unexpected relationship with the family. It was not just 8I had become an expert at scraping（刮掉）dirt stuck to their wooden floor, 9that I had learned exactly how to place toys on the girls’ beds. It was 10than that, for I felt I had become a part of their 11.
Freda stayed at home with the kids, 12I would often see her in the morning 13
them to school. And I’d be there when they 14home at lunch for sandwiches and piano practice. I had 15them grow up. Now I was fired, but the_16__ thing was that I still wanted to keep scraping away the dirt and dust for the family.
I left Freda’s house that day, wondering about the 17relationship with my clients（主顾）. Who am I 18them? As a matter of fact. I’m 19an employee － the lowest kind of employee. But I’m also a trusted 20of the family. I can’t help worrying about what happens around me.
1.A. stepping B. coming C. jumping D. moving
2.A. hanging B. making C. wearing D. changing
3.A. cleaned B. washed C. swept D. brushed
4.A. duty B. money C. work D. pay
5.A. already B. seldom C. never D. yet
6.A. regret B. surprise C. fear D. loss
7.A. started B. developed C. improved D. broken
8.A. why B. what C. that D. which
9.A. but B. and C. or D. for
10.A. less B. least C. more D. most
11.A. life B. story C. activity D. experience
12.A. as B. so C. since D. however
13.A. taking B. bringing C. meeting D. calling
14.A. left B. returned C. went D. marched
15.A. found B. noticed C. watched D. realized
16.A. possible B. great C. proper D. strange
17.A. meaning B. nature C. result D. importance
18.A. for B. to C. with D .at
19.A. hardly B. certainly C. probably D. merely
20.A. member B. person C. relative D. companion
It was after he got what he had desired he realized it was not so important.
A. that B. when C. since D. as
I grew up in Africa. At least I should say that I spent much of the first ten years of my life there.
A. and B. or C. so D. but
－I’m sorry I’m late. I got held up in the traffic on my way here.
－ .
A. Don’t be late next time B. You should be blamed
C. It doesn’t matter, I’m also late D. Never mind. Come and sit down
