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.
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 |
Please point out which box will not fall.
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 |
An old man was fishing on the bank of a river. A child came to see him fishing. The old man was really good at fishing and it didn't take long for him to catch a full basket of fish. The old man saw that the child was very cute, and he wanted to give her a whole basket of fish. But the child shook her head. The old man was surprised and asked, "Why don't you want the fish? '
The child replied," I want the fishing rod(竿)in your hands. "
The old man asked," Why do you want the rod?"
"It doesn't take long to eat all the fish in a basket. But if I have the fishing rod, I can go fishing by myself and I won't be afraid of not having any more fish to eat.
I think you will certainly say that the child is very smart. Wrong! If she doesn't know how to fish, she cannot have fish to eat, even though she has the fishing rod. It's useless to only have a fishing rod. Fishing skills are the most important, not the fishing rod.
Too many people think that if they have a "fishing rod" in their life, they will no longer fear the wind and rain. They are just like the child, who thought that if she had a fishing rod, she would have fish to eat.The old man was fishing on the bank of________.
A. a river B. a lake C. a pool Why did the child refuse the fish the old man gave her?
A. Because she didn't like fish.
B. Because she wanted his fishing rod.
C. Because the old man had few fish.The writer thought the child was_____ after she explained why she didn't want the fish.
A. smart B. hardworking C. sillyThe article mainly tells us______.
A. if you have a "fishing rod" in your life, you won't be afraid of anything
B. if you have a fishing rod, you'll have a lot of fish to eat
C. "fishing skills" are more important than "the fishing rod" in life What is the best tide(标题)for the article?
A. The Fishing RodB. The Fishing Man C. The Fishing Girl
Scott was not happy. He had no money left to buy the new toy train he wanted. Suddenly,he had an idea! "I’ll ask my brother Alan if I can borrow some money. He always has money to lend people. "
Scott found Alan in his room. "Alan,may I borrow $20 from you to buy myself a new train?"
Alan replied,"I just spent all of my money on Mom’s birthday present. I have no money left. You are barking up the wrong tree. "
Scott was very disappointed. He decided to get a job. He went to many stores, but no one had a job for him. He walked and walked from store to store.
Finally,he got a job selling ice cream and he was very happy. "My feet are tired for walking all day,but I can get enough money for a toy train. "Why did Scott need to borrow money?
A. Because he needed to get a job.
B. Because he wanted to buy a new toy train.
C. Because he wanted to buy a present for his mother.The underlined( 划线) phrase "barking up the wrong tree" means______.
A. acting like a dog B. asking the wrong person
C. asking the right personAccording to the story, Scott might work in_______.
A. a dessert house B. a book store C. a clothing storeWhat do you think of Alan?
A. He was unfriendly. B. He was clever. C. He was kind.What can we know from the story?
A. Scott could get a new train.
B. Scott didn't like his brother.
C. Scott's family was very poor.
| MENU |
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| Meat dishes mutton ¥60 Beijing duck¥35 beef with potatoes ¥20 rabbit ¥18 fried chicken ¥30 fried fish ¥25 |
Other foods tofu ¥4 cabbage ¥10 eggs and tomatoes ¥ 12 vegetable salad ¥7 egg and tomato soup ¥5 rice ¥ 1/bowl dumplings ¥5/plate noodles ¥5/bowl pie ¥8/plate |
| Drinks cola ¥9/bottle green tea ¥ 10/cup coffee ¥30/cup milk ¥3/bottle yogurt¥3/bag orange juice¥ 12/glass |
What food is the cheapest?
A. Noodles. B. Potatoes. C. Rice.What drink is the most expensive?
A. Milk. B. Coffee. C. Orange juice.How many kinds of drinks are there?
A. Six. B. Seven. C. Eight.How much will you spend if you want a plate of dumplings and Beijing duck?
A. ¥35. B. ¥40. C. ¥57.Which of the following will cost you ¥42?
A. Beef with potatoes,a bowl of rice,eggs and tomatoes.
B. Mutton,milk, cabbage and a bottle of milk.
C. Fried chicken, vegetable salad and a bowl of noodles.
“You know, these cups brings to my mind a story I heard,” Mary said to her students.
She poured some tea. There were four of them and there were four completely different cups on the tables.
“I heard there was a teacher who took all his students for tea. His students were surprised that all the cups on the table were different. They all took a cup and started drinking their tea, each looking at the cups of others. The teacher said, “Did you notice your behavior? You are all looking at each other’s tea cup and some of you even envy(羡慕)the finer cups of others.”
“I put the different cups here on purpose. I want to say life is like this tea. You all have the same thing in your cups——tea. And yet you cannot truly enjoy it in your envy of another’s cup. You forget to enjoy your own life when you envy someone else’s life. We all have the same thing——life. We should care more about the tastes of your own life. So now, taste your own tea. Does it matter from which cup it came from?” Mary finished telling her story and her students all sat in silence for a while, enjoying their tea. And it really did not matter a bit from which teacup they drank. Which of the following statement is TRUE?
| A．All of the students had the same kind of cups. |
| B．One of the cups is different from others. |
| C．All of the cups were filled with the same tea. |
| D．There was different tea in different cups. |
What should we learn from the story?
| A．Envy others and make progress. | B．All the lives are the same. |
| C．Work hard and catch up with others. | D．Try to enjoy your own life. |
Which is the best title for the story?
| A．More than tea in a cup | B．The same cups, the same tea |
| C．The taste of the tea | D．Different cups, different tea |
Do you play a musical instrument? If so, you may be getting smarter. A recent study shows that taking music lessons can raise a person’s IQ.
Scientists studied 132 children in Canadian schools. At the beginning of the school year, these children took an IQ test. Then they were divided into four groups. One group took singing lessons. Another group took weekly piano lessons. The third group took classes in drams(戏剧). And the last group did no special activities at all.
At the end of the school year, the 132 children took an IQ test again. In all four groups, the average score went up. However, the piano players’IQs went up 7.0 points on average. The average increase for the other three groups was only 4.3 points.
The researchers say that the difference is small and it may not result in better grades for the piano players. However, they still consider the results important. Learning an instrument helps kids becomes better at concentrating and at memorizing things. Therefore, the researchers say, it may be good for brain development in young people.
If you have a chance to learn to play a musical instrument, never miss it. Remember it can make you smarter. Which of the following is NOT true of the study?
| A．It was done in Canada. |
| B．It was done by some musicians. |
| C．It included four groups of children. |
| D．It took one school year to complete. |
Which of the following is true?
| A．Average IQ scores increased in all the groups. |
| B．Only the piano players’ IQs increased. |
| C．The average increase for all four groups was 4.3 points. |
| D．Most of the children’s IQs did not go up. |
The underlined word “they” in the passage refers to ______.
| A． better grades | B．piano players | C．researchers | D．instruments |
What’s the main idea of the passage?
| A．It’s good for us to listen to music. |
| B．Everyone should learn to play the piano. |
| C．Take an IQ test before you learn instruments. |
| D．Learning instruments may make kids smarter. |