题目内容
Robert wanted to find a good job in the city, but he found things were ________when he got there.
- A.comfortable
- B.different
- C.easy
- D.pleasant
解析:he found(that)+宾语从句,在宾语从句中主语是物。
Three kids have been learning chemistry for only a few months. But they have already begun to challenge (挑战) a world famous scientist!
Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator (酸碱指示剂). They want it to take the place of litmus (石蕊) paper.
"We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other."
British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world.
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It's hard to get a clear result.
Will there be a better indicator than litmus paper? The three kids decided to try and find out!
How? They went to collect over 40 plants in parks, gardens and markets. Then they ground (研磨) leaves, flowers and stems (茎) to get the pigments (色素) from them.
The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best color change. They decided it was the litmus paper!
"It's our first scientific journey, Huang said, "But it makes me want to try harder."
【小题1】Whom did the three kids want to challenge?
A.Their chemistry teacher. |
B.Their headmaster. |
C.Robert Boyle |
D.Thomas Edison |
A.plant | B.animal | C.paper | D.liquid |
A.red cabbage | B.litmus paper |
C.any plant | D.any flower |
A.how to make litmus paper |
B.about the three kids' spirit |
C.scientists were wrong |
D.the kids are heroes |
Napping(小睡) after learning something new could help improve your memory--- as long as you dream, scientists say.
They found people who dream about a new task do it better on waking than those who do not sleep or do not dream.
Volunteers were asked to learn the layout(布局,设计) of a 3D computer maze(迷宫) so they could find their way several hours later. Those allowed to take a pap and who also remembered dreaming of the task, found their way to a landmark quicker.
The researchers think the dreams are a sign that unconscious(无意识的) parts of the brain are working hard to process information about the task..
Dr. Robert Stickgold of Harvard Medical School, said dreams may be a marker that the brain is working on the same problem at many levels.
Study tips
Co-author Dr. Erin Wamsley said the study suggests our non-conscious brain works on the things that it deem(认为) are the most important.
“Every day we are gathering lots of information and new experiences,” she said. “It would seem that our dreams are asking the question, “How do I use this information to inform(影响) my life?”
The scientists say there may be ways to use this phenomenon(现象) for improving learning and memory. For example, students might be better studying hard before bedtime, or taking a nap after a period of afternoon study.
【小题1】 Scientists say ______ could help improve your memory.
A.dream | B.nap | C.nap and dream | D.nap without dream |
A.Take a nap. | B.Dream a task. | C.Learn about 3D computer. | D.Find their way out of a maze. |
A.They are a sign that parts of the brain is unconscious. |
B.They can help us fall asleep and improve learning and memory. |
C.They tell us how to use this information to inform our life. |
D.They may be a marker that the brain is working on the same problem. |
A.Before bedtime. | B.After bedtime. | C.Before taking a nap. | D.In the afternoon. |
This is a song millions of Americans will hear this New Year’s Eve. It is called Auld Lang Syne(《友谊地久天长》). It is the traditional music played during the New Year’s celebration. Auld Lang Syne is an old Scottish poem. It tells about the need to remember old friends.
The words “auld lang syen” mean “old long since”. No one knows who wrote the poem(诗) first. However, a version(版本) by Scottish poet Robert Bums was published(出版) in 1796. The words and music we know today first appeared in a songbook three years later.
The song is played in the United States mainly on New Year’s Eve. The version you are hearing today is by the Washington Saxophone Quarter. As we end our program with Auld Lang Syne, I would like to wish all our radio friends a very Happy New Year! This is Buddy Thomas.
【小题1】This passage is from ______.
A.a newspaper | B.a magazine | C.a TV program | D.a radio program |
A.Robert Bums. |
B.The Washington Saxophone Quarter. |
C.Buddy Thomas. |
D.The passage doesn’t tell us. |
A.In 1790. | B.In 1793. | C.In 1796. | D.In 1799. |