1. What is the man doing on his computer?
A.Watching a movie. | B.Listening to a book. | C.Enjoying some music. |
A.Monthly. | B.Weekly. | C.Daily. |
A.A director. | B.A writer. | C.An actor. |
A.From TV. | B.From the newspaper. | C.From the Internet. |
1. What is the speaker doing now?
A.Giving a lesson. | B.Making a speech. | C.Reporting news. |
A.About 500 °C. | B.About 400 °C. | C.About 100 °C. |
A.Complicated. | B.Cheap. | C.Space-consuming. |
1. When did the horse-face skirt first appear?
A.In the Han Dynasty. | B.In the Song Dynasty. | C.In the Ming Dynasty. |
A.To make a traditional skirt. |
B.To buy one for his sister. |
C.To get a good presentation topic. |
A.White. | B.Red. | C.Blue. |
The opening ceremony of
Observant viewers noticed that as the athletes made their entrance
When the digital torchbearer lighted the main cauldron(锅), the atmosphere at the opening ceremony reached its high-top,
The opening ceremony drew inspiration from traditional culture,
6 . My son was one of the students who served as a volunteer in different services while in a high school. Nowadays it is
One day, I asked him why he worked long hours voluntarily every week. He gave me a reply
In some cases, no. A study found that when 8th graders in some schools were asked to accumulate
If teens
A.inevitable | B.common | C.convenient | D.flexible |
A.achievements | B.ceremony | C.requirements | D.celebration |
A.beyond | B.of | C.within | D.to |
A.take | B.let | C.bring | D.turn |
A.initially | B.merely | C.absolutely | D.previously |
A.inspire | B.force | C.expect | D.persuade |
A.tough | B.random | C.specific | D.miserable |
A.advocated | B.recommended | C.assured | D.concluded |
A.Moreover | B.However | C.Subsequently | D.Similarly |
A.response | B.resistance | C.access | D.exposure |
A.neglect | B.stress | C.recognize | D.weigh |
A.benefits | B.requests | C.consequences | D.effects |
A.conception | B.service | C.privilege | D.anticipation |
A.free from | B.nothing but | C.but for | D.far from |
A.Going back | B.Giving back | C.Taking back | D.Looking back |
1. Who is the speaker talking to?
A.Teachers. | B.Students. | C.Parents. |
A.Interesting teaching methods. |
B.Students' class performance. |
C.Teachers' attitude toward it. |
A.Pay 25 dollars for the service. |
B.Contact the speaker to change new ones. |
C.Keep the material and take their money back. |
1. How often does the woman walk to work?
A.Two days a week. | B.Three days a week. | C.Four days a week. |
A.The speed. | B.The expense. | C.The parking situation. |
A.His office. | B.His home. | C.The subway station. |
“What happened?” asked Mrs. Sharpnack. The red marks covering the test said everything. Without even seeing the grade,I knew I had failed. I felt upset as I realized what would come after this.
My failing score would mean my grades wouldn’t be high enough to be on the Honor Roll that term. In just a few weeks,the names of the Honor Roll students would be read during class. Those on the list would be excused to go watch a movie and have treats. I wasn’t as upset about missing the party as I was about to explain to my friends why I wouldn’t get to go. My friends always got good grades,and usually,so did I.
“I know you can pass this test” said Mrs. Sharpnack. “What if I let you take it again? I’ll give you a week to study.” But I just wanted to go home,forget about the test and never think about math again. Mrs. Sharpnack could have left me behind,but she didn’t. Perhaps a great teacher just can’t be satisfied with students falling short of his or her potential. “I know you can pass this test,” she repeated firmly. She said it with such certainty that it almost felt like a vow (誓言). For a brief moment,I wondered if she could be right.
I had thirty minutes from the time school let out until my bus came. Mrs. Sharpnack asked if I would be willing to use that time to go over the problems I had missed. I agreed. We started right then and made plans to meet each day for one week,after which I would take the test again.
After going over a few problems,my friend Madena came looking for me.
“What are you doing?” she asked.
Before I could say anything,Mrs. Sharpnack turned my test backside up,hiding its contents. “Amanda is helping me with a special project,” she said. By then,it was time for our bus to come. I gathered up my things and left with Madena.
For the next week,I stayed after class with Mrs. Sharpnack. She would go over each problem,carefully explaining their solutions.
注意:续写词数应为150左右。
The day when I should take the test again came soon.
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Things were different this time.
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10 . New research by scientists at the University of Bristol explains how a “stop-start” pattern of evolution,governed by environmental change,could explain why crocodiles (鳄鱼) have changed so little since the age of the dinosaurs.
Crocodiles today look very similar to ones from 200 million years ago. There are also very few species alive today—just 25. Other animals such as lizards and birds have achieved a diversity of many thousands of species in the same amount of time. Prehistory also saw types of crocodile we don’t see today,including giants as big as dinosaurs,plant-eaters,fast runners and snakelike forms that lived in the sea.
The rate of their evolution is generally slow,but occasionally they evolve more apace because the environment has changed. In particular,this new research suggests that their evolution speeds up when the climate is warmer,and that their body size increases.
Lead author Dr. Max Stockdale said,“Our analysis used a machine learning algorithm (算法) to estimate rates of evolution. Evolutionary rate is the amount of change that has taken place over a given amount of time,which we can work out by comparing measurements from fossils and taking into account how old they are. For our study we measured body size,which is important because it interacts with how fast animals grow,how much food they need,how big their populations are and how likely they are to die out.”
The findings show that the limited diversity of crocodiles and their apparent lack of evolution result from a slow evolutionary rate. It seems the crocodiles arrived with an already efficient and versatile (多功能的) body plan that doesn’t require changes. This versatility could be one explanation why crocodiles survived the meteor (流星) impact at the end of the Cretaceous period,in which the dinosaurs died out. Crocodiles generally develop better in warm conditions because they cannot control their body temperature and require warmth from the environment.
1. What do we know about prehistoric crocodiles?A.They fed mainly on plants and lived in the ocean. |
B.They evolved much faster than contemporary birds. |
C.They were more diverse in species than present crocodiles. |
D.They differed greatly in appearance from present crocodiles. |
A.Naturally. | B.Steadily. |
C.Separately. | D.Quickly. |
A.growth rate | B.food choice |
C.length of life | D.speed of evolution |
A.What determines crocodiles’ body size |
B.Why crocodiles have changed so little |
C.How crocodiles have evolved since their existence |
D.What effects climate has on the evolution of crocodiles |