The box is heavier than that one. A.much B.very C.more D.so 查看更多

 

题目列表(包括答案和解析)


Passage 2
When you get tired of homework, several minutes’ walk in a nearby green park helps you relax at once. Or you may stand facing the lake or the seas. They will calm (not to be excited or nervous) you just like the green plants.
Wonder why? Color is a key part of the answers. Since it is so, green and blue help make people feel more quiet and safe.
All colors have special power. Scientists have found that many colors have specific effects (效果) on people’s mind and feelings.
Try an easy and interesting experiment and you’ll see how color “mislead” you sometimes. Wrap (包装) two boxes of the same size with colored paper, one red and the other white. Then weigh the two boxes with your hands. Which one is heavier? Most people will think that the red box is heavier, even though they weigh the same.
Colors can affect (影响) learning. Scientists have found that students spend more time reading if they read information written in blue text. Blue helps most people calm down and think more.
Clever uses of colors in daily life are to be seen everywhere. Hospitals and libraries seldom paint their walls, tables and desks red. They use light colors, like light blue or green. Red makes people excited while light colors help them relax. Haven’t worked out how color affects your daily life? Start with your small room. Try to make some changes in it and you’ll get to know how important color is!
【小题1】The underlined word “mislead” means _____.

A.affectsB.effects
C.causes someone to have a wrong ideaD.give wrong directions
【小题2】We’d better paint the walls of the hospital in _____.
A.light blue or light greenB.deep red or deep brown
C.deep orange or deep redD.light green or light yellow
【小题3】If you want to ______, you’d better sit in the room painted blue.
A.weigh something with your handsB.study attentively
C.face the lake or the seaD.enjoy some rock music
【小题4】Which of the following is NOT true?
A.When you are going to have a rest, you’d better sit in the room painted green
B.Scientists have known some differences among some colors
C.When you get tired of homework, you should look at the green plants far away
D.The passage has told us clearly why some colors are warm and other colors are cool.
【小题5】The reading mainly shows us _____.
A.the difference between red and blue
B.how to get on well with others
C.how to make smart uses of different colors in our daily life
D.how to paint and decorate our rooms

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Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.
Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).
Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

【小题1】If the bottom of an object is ______ its top, it will fall over easily.

A.lighter thanB.heavier thanC.no heavier than  D.as heavy as
【小题2】Please point out which box will not fall.

【小题3】The main idea of the passage is _________.
A.why things fall over    B.a low center of gravity
C.a high center of gravity  D.that everything has weight

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Passage 2
When you get tired of homework, several minutes’ walk in a nearby green park helps you relax at once. Or you may stand facing the lake or the seas. They will calm (not to be excited or nervous) you just like the green plants.
Wonder why? Color is a key part of the answers. Since it is so, green and blue help make people feel more quiet and safe.
All colors have special power. Scientists have found that many colors have specific effects (效果) on people’s mind and feelings.
Try an easy and interesting experiment and you’ll see how color “mislead” you sometimes. Wrap (包装) two boxes of the same size with colored paper, one red and the other white. Then weigh the two boxes with your hands. Which one is heavier? Most people will think that the red box is heavier, even though they weigh the same.
Colors can affect (影响) learning. Scientists have found that students spend more time reading if they read information written in blue text. Blue helps most people calm down and think more.
Clever uses of colors in daily life are to be seen everywhere. Hospitals and libraries seldom paint their walls, tables and desks red. They use light colors, like light blue or green. Red makes people excited while light colors help them relax. Haven’t worked out how color affects your daily life? Start with your small room. Try to make some changes in it and you’ll get to know how important color is!
【小题1】The underlined word “mislead” means _____.
A.affectsB.effects
C.causes someone to have a wrong ideaD.give wrong directions
【小题2】We’d better paint the walls of the hospital in _____.
A.light blue or light greenB.deep red or deep brown
C.deep orange or deep redD.light green or light yellow
【小题3】If you want to ______, you’d better sit in the room painted blue.
A.weigh something with your handsB.study attentively
C.face the lake or the seaD.enjoy some rock music
【小题4】Which of the following is NOT true?
A.When you are going to have a rest, you’d better sit in the room painted green
B.Scientists have known some differences among some colors
C.When you get tired of homework, you should look at the green plants far away
D.The passage has told us clearly why some colors are warm and other colors are cool.
【小题5】The reading mainly shows us _____.
A.the difference between red and blue
B.how to get on well with others
C.how to make smart uses of different colors in our daily life
D.how to paint and decorate our rooms

查看答案和解析>>

Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.

Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).

Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

1.If the bottom of an object is ______ its top, it will fall over easily.

A. lighter than   B. heavier than   C. no heavier than    D. as heavy as

2.Please point out which box will not fall.

3.The main idea of the passage is _________.

A. why things fall over             B. a low center of gravity

C. a high center of gravity               D. that everything has weight

 

查看答案和解析>>


When you get tired of homework, several minutes’ walk in a nearby green park helps you relax at once. Or you may stand facing the lake or the sea. They’ll calm (not to be excited or nervous) you just like the green plants.
Wonder why? Color is a key part of the answers. Since it is so, green and blue help make people feel more quiet and safe.
All colors have special power. Scientists have found that many colors have specific effects (效果) on people’s minds and feelings.
Try an easy and interesting experiment and you’ll see how color “misleads” you sometimes. Wrap (包装) two boxes of the same size with colored paper, one red and the other white. Then weigh the two boxes with your hands. Which one is heavier? Most people will think that the red box is heavier, even though they weigh the same.
Colors can affect (影响) learning. Scientists have found that students spend more time reading if they read information written in blue text. Blue helps most people calm down and think more.
Smart (clever) uses of colors in daily life are to be seen everywhere. Hospital and libraries seldom (很少) paint their walls, tables and desks red. They use light colors, like light blue or green. Red makes people excited while light colors help them relax. Haven’t worked out how color affects your daily life? Start with your small room. Try to make some changes in it and you’ll get to know how important color is!
【小题1】The underlined word “misleads” means ______

A.affects
B.effects
C.causes someone to have a wrong idea
D.give wrong directions
【小题2】 We’d better paint the walls of the hospital in ______
A.light blue or light green
B.deep red or deep brown
C.deep orange or deep red
D.light green or light yellow
【小题3】 If you want to _______, you’d better sit in the room painted blue.
A.weigh something with your hands
B.study attentively
C.face the lake or the sea
D.enjoy some rock music
【小题4】 Which of the following is NOT true?
A.When you are going to have a rest, you’d better sit in the room painted green
B.Scientists have known some differences among some colors
C.When you get tired of homework, you should look at the green plants far away
D.The passage has told us clearly why some colors are warm and other are cool
【小题5】The reading mainly shows us _____
A.the difference between red and white.
B.how to get on well with others
C.how to make smart uses of different colors in our daily life
D.how to paint and decorate our rooms

查看答案和解析>>


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