What are some of the biggest scientific discoveries in the history of humans? How have they changed our lives? Are all the scientists born with creativity?

There was once a famous scientist who made several important discoveries. Once he was asked how he was able to be so creative. He replied that it all came from an experience he had with his mother at the age of 2. He was trying to take a bottle of milk out of the fridge. But the bottle was too slippery and he dropped it. The kitchen was covered in milk.

When his mother came into the kitchen,instead of shouting at him or punishing him,she said,"Robert,what a great and wonderful mess you have made!I have never seen such a huge puddle(水坑)of milk. Would you like to play in the milk for a few minutes before we clean it up?"

So he did. After a few minutes,they cleaned it up together. Then his mother said,"This was a failed experiment(实验)in how to carry a big bottle of milk with two small hands. Let's go out in the backyard and fill the bottle with water and see if you can find a way to carry it without dropping it.”

The little boy learned that if he held the bottle at the top near the mouth with both hands,he could carry it without dropping it. What a wonderful lesson!

The scientist then added that it was at that moment that he knew he didn't need to be afraid to make mistakes. He learned that mistakes are just chances to learn something new which is after all, what scientific experiments are all about. Even if the experiment doesn't "work", we can still learn something valuable from it.

1.Which word in the passage can match the meaning of "being smooth, wet or oily and difficult hold"?

A.failed B.huge C.slippery

2.What did Robert's mother do after he made a mess?

A.She allowed him to play in the mess.

B.She shouted at him and punished him.

C.She didn't allow him to take out milk bottles alone.

3.From the passage, we know Robert________________.

A.started his scientific discoveries at the age of 2

B.used to like drinking milk and be very careless

C.usually treats mistakes as chances to learn something new instead of being afraid of them

4.From the last paragraph, which opinion may the writer support?

A.Mother plays the only important role in children's future life.

B.To be creative, we should keep an open mind about mistakes.

C.Scientific experiments must be valuable.

5.Which of the following words best describes Robert's mother?

A.Careful. B.Smart. C.Strict.

完成对话。在空格中填上适当的单词,使对话完整正确。一空一词(含缩写词)。

A: Hi!What are you doing?Is it a diary?

B: No. Recently I haven't kept diaries any more. I'm listing something when we choose a future career(职业). You know, we are in Grade 9, we'll go to senior high school(高中)this year. Taking future career1.makes me think about this earlier.

A: Let me see. Wow, you think Salary(工资)should, come first. There's no2.that making money should be considered. But don't you think3.is more important? For example, if you have a job that you don't like, you will get tired of this job quickly.

B: That sounds reasonable. I still think how much money you make shows how much your work is4.

A: As for me, the sense of achievements in the job will be the happiest thing. People's choice may be influenced by their 5.too. Choosing a job that you are not good at is not wise.

B: That's to say I should choose science in senior high school. I am good at chemistry and I always want to be a pharmacist(药学师). What do you choose?

A: I'm not sure. I haven't decided yet. My dad6.studying architecture major(建筑学)in the future, but I am not interested in that. I love a kind of life7.is full of the unexpected tasks. I hate the life that we can predict what will happen tomorrow.

B: Wow, it's not like you. You seem quiet in your8.life.

A: That's not true. I am much stronger than what I look like. I am ready to face all happenings in the future. 9.we choose,we will probably achieve it as long as we take action right now and10.to it.

B: You're right.

完成表格。阅读下面短文,完成题后的表格。

The Cost of Thinking

Though humans have many differences,they share several typical characteristics(特征),such as large brains and the ability to walk upright on two legs.

The first human characteristic is humans' large brains. Mammals(哺乳动物)weighing sixty kilos have an average(平均)brain size of 200 cm'. Modern man has a brain averaging 1,200~1,400 cm3. The larger,the better?Unluckily,that is not the case.

The bigger our brain is,the more energy is needed. It's not easy to carry around,especially when boxed inside a large skull(颅骨). It's even harder to provide energy. In modern man,the brain is about 2-3% of total body weight but it needs 25%of the body's energy when the body is at rest. But the brains of apes(类人猿)require only 8% of rest-time energy. How did early humans pay for their large brains?Firstly,they spent more time in search of food. Secondly,their muscles(肌肉)grew smaller and weaker.

Another human characteristic is that we walk upright. Standing up,it's easier to find food or enemies. In addition,their arms that are unnecessary for moving around are freed for other purposes,like throwing stones or showing body languages. As a result,humans can perform very different tasks with their hands.

Yet walking upright has its downsides. The bones(骨头)have to support a large skull. That causes backaches and painful necks. A large brain makes many advantages. It seems that these have made humans the most powerful animal on earth. But humans enjoyed all of these advantages for a full 2 million years during which they were weak,small and not important.

Title: The Cost of Thinking

Two typical human

characteristics

Have

large

human

brains

Advantages

Be1.than any other animal on earth.

Downsides

The bigger our brain is, the more energy is needed.

Early humans paid for their large brains in2.:

spend more time in search of food;

their muscles grow smaller and weaker.

3.

Advantages

It's easier to find food or enemies.

Their arms throw stones and show body languages

The result:.4.with their hands.

Downsides

The hones have to support a large skull.

5.: Have backaches and painful necks

 0  133193  133201  133207  133211  133217  133219  133223  133229  133231  133237  133243  133247  133249  133253  133259  133261  133267  133271  133273  133277  133279  133283  133285  133287  133288  133289  133291  133292  133293  133295  133297  133301  133303  133307  133309  133313  133319  133321  133327  133331  133333  133337  133343  133349  133351  133357  133361  133363  133369  133373  133379  133387  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网