题目内容
| —________? —Size 37, please. |
|
[ ] |
| A. What color do you want? B. What size would you like? C. What about this one? D. What do you think of the sweater. |
| B |
赢在课堂名师课时计划系列答案
天天向上课时同步训练系列答案
Scientists have found out that the radiation（辐射） is the greatest danger to spacemen in space. When spacemen are working in space, they are in danger of the radiation from the sun and other stars, which is bad for their health. The harm of the radiation won’t be found until their children even grandchildren are born. Some special medicine may work a little, but no really effective medicine has been found so far.
Space rubbish is also thought to be a great danger to spacemen. It’s reported that there were 9,000 man-made things flying in space. About 30% of these are satellites, 10% are spaceships, and the rest are space rubbish. An explosion（爆炸）in space in 1999 made a cloud of 300,000 fragments, each at least 4mm in size. A small piece of these even knocked a spaceship window and caused some damage（损坏）.
Scientists are watching and reporting any possible danger all the time. They are working to deal with space rubbish. Although space is really dangerous, it interests many people on the earth. In the near future, it may become possible for people to spend a few days in a space hotel. We may even choose to leave the earth and live in space in a few years. So we should do something to help improve the space environment.
【小题1】 ______ shows the man-made things in space in the correct way.
| A． | B． | C． | D． |
| A．good | B．helpful | C．useful | D．harmful |
| A．碎片 | B．泡沫 | C．烟雾 | D．飞碟 |
| A．two | B．three | C．four | D．five |
| A．Scientists have found out ways to solve any problem in space. |
| B．Every one of us can have a travel to space in ten years. |
| C．The harm of the radiation may be found in the spacemen’s children. |
| D．Space is really dangerous, so it doesn’t interest anyone on the earth. |
The size and shape of your ears show your character more than any other part of the face. Other parts of the face change shapes as we get older, but ears do not change their shapes. They only change in size.
Reading people’s character from their ears is a very old science. In the past people thought that a person’s ears with color was dangerous. They also thought that the shape of the ears showed if a person was musical or not. Today，too many people believe that the size and shape of the ears help you know if a person is musical.
Ears are all different，and each different thing has a meaning. Next time you look at a person，see if his or her ears are large，medium-size，or small. Look at the lobes（耳垂）.Do they stick to the face? Ears that are always red mean that a person may get angry easily. Ears that are always cold and nearly white color mean that a person has a nervous character.
【小题1】When a baby is born, ________.
| A．his/ her ears are red |
| B．his/ her ears will not change all the life |
| C．his/ her ears will not change in shape |
| D．he/ she will get large ears |
| A．only for music |
| B．an old idea |
| C．very new |
| D．a good way to talk with others |
| A．he is a kind man | B．he is very happy |
| C．he may get angry easily | D．he drinks too much |
| A．to look at his face, ears and nose |
| B．to look at the size, color and shape |
| C．to look at his mouth, eyes and nose |
| D．to look at the hair, eyes and color |
| A．Looking at a person in the right way | B．Ears and colors |
| C．The change of ears | D．Ears and characters |
Old Cremona Violins
Most musicians(音乐家) agree that the best violins(小提琴) were first made in Cremona, Italy, about 200 years ago. These violins sound better than any others. They even sound better than violins made today. Violin makers and scientists try to make instruments(乐器) like the Italian violins. But they aren’t the same. Musicians still prefer the old ones.
Some people think it is the age of the violins. But not all old violins sound wonderful. Only the old violins from Cremona are special(特殊的). So age cannot be the answer.
Other people think the secret to those violins is the wood. The wood must be from certain kinds of trees.
But the kind of wood may not be so important. It may be more important to cut the wood in a special way. Wood for a violin must be cut very carefully. It has to be the right size and shape(形状). The smallest difference will change the sound of the violin. Musicians sometimes think that this was the secret of the Italians. Maybe they understood more than we do about how to cut the wood.
Size and shape may not be the answer, either. Scientists can make new ones that are exactly the same size and shape. But the new violins still do not sound as good as the old ones. Some scientists think the secret may be the varnish. Varnish is what covers the wood of the violin. It makes the wood look shiny. It also helps the sound of the instrument. But no one knows what the Italian violin makers used in their varnish.
【小题1】The passage is about .
| A．making violins | B．musical instruments |
| C．scientific ideas | D．the old Italian violins |
| A．did not know much about violins | B．were lucky |
| C．used many kinds of wood | D．knew something special |
| A．have the same size and shape as the old ones |
| B．sound the same as the old ones |
| C．are better than the old ones |
| D．have the same varnish as the old ones |
| A．their sound | B．their colour | C．their varnish | D．the music |