He made another wonderful discovery , ____ of...

He made another wonderful discovery , ____ of great importance to science.

A .which I think is　           B. which I think it is

C .which I think it             D.I think which is

高二英语单项填空中等难度题查看答案及解析

He has made another wonderful discovery, _____ I think is of great importance to science.

A. which      B. what       C. when             D. that

高二英语单项填空困难题查看答案及解析

Mr. Green has made another wonderful discovery,  ______ great

importance to science.

高二英语单项填空简单题查看答案及解析

The Internet is a wonderful discovery, ___of great significance to people’s lives.

高二英语单项填空中等难度题查看答案及解析

Many a student ______ made that mistake before, which is another way of saying a great many students ________ made that mistake.

A. had; has                B. has been; have         C. have; has                 D. has; have

高二英语单项填空简单题查看答案及解析

What a great artist! It seemed only a couple of minutes ____ he had finished this wonderful painting!

A．until             B．when             C．after             D．before

高二英语单项填空中等难度题查看答案及解析

There was once a famous scientist who made several important discoveries. Once he was asked how he could be so creative. He replied that it all came from an experience he had with his mother when he was 2 years old. He was trying to take a bottle of milk out of the refrigerator. But the bottle was too slippery（滑的）and he dropped it. The kitchen floor was covered in milk.

Instead of shouting at him or punishing him, his mother said, “Robert, what a great and wonderful mess you have made! I have never seen such a huge puddle 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 in how to carry a big bottle of milk with two tiny hands. Let’s 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 lip 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 opportunities to learn something new.

1.Robert made a mess on the kitchen floor by _____.

A.doing an experiment

B.dropping a bottle of milk

C.throwing bottles around

D.drinking a bottle of milk

2.What did Robert’s mother do after he made the mess?

A.She showed him a huge puddle of milk.

B.She shouted at him and punished him.

C.She asked him to clean the kitchen.

D.She allowed him to play in the mess.

3.Which of the following words best describes Robert’s mother?

A.Hardworking.

B.Careful.

C.Smart.

D.Protective.

4.With this story, the author tries to _____.

A.tell readers how much he loved his mother

B.suggest that we should treat life as a big experiment

C.show that scientific discoveries come from everyday life

D.tell readers that they should keep an open mind about mistakes

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There’s no way of knowing why one man makes an important discovery __ _ another man, also intelligent, fails.

A. since     B. if        　　 C. as    　　     D. while

高二英语单项填空中等难度题查看答案及解析

The great contributions he made ________ our country is ________worth remembering.

A. to, well          B. of, well          C. to, very         D. for, very

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_______as a great discoverer, he has made a good number of experiments on the mice.

A.To honor B.To be honored C.Honoring D.Having honored

高二英语单项填空中等难度题查看答案及解析