The woman keeps _______ the house because she wants to keep it _______.

A. cleaning; clean B. to clean; clean

C. clean; cleaning D. cleaning; cleaning

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----Would you like to go to my birthday party tonight? ----- _______

A. Yes, I would like B. Yes, I would like to

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Why not ________ an English club to practice _______ English?

A. join; speaking B. to join; speaking

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Do you write a report ______ an animal _______ danger for the club?

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Life is full of surprises and you never know how things will turn out .Sir John Gurdon is a good example of this. As a boy, he was told he was hopeless at science and finished bottom of his class. Now, aged 79, the very same Gurdon shared the 2012 Nobe Prize in Medicine with Japanese stem cell(干細胞) researcher Shinya Yamanaka.

Like so many scientists, Gurdon shows us where the power of curiosity and perseverance (堅持不懈)can lead.

At the age of 15 in 1948, Gurdon ranked last out of the 250 boys at his high school in biology and every other science subject. Gurdon’s high school science teacher even said that his dream of becoming a scientist was“quite ridiculous”.

In spite of his teacher s criticisms，Gurdon followed his curiosity and kept working hard. He went to the lab early and left later than anyone else. He experienced thousands of failures.

“My own belief is that we will, in the end, understand everything about how cells actually work,” Gurdon said.

In 1962, Gurdon took a cell from an adult frog and moved its genetic(基因的）information into an egg cell. The egg cell then grew into a clone(克隆) of the adult frog. This technique later helped to create Dolly the sheep in 1996, the first cloned mammal(哺乳動物）in the world.

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Luck favors the prepared mind Gurdon told the Nobel Prize Organization. “Ninety percent of the time things don’t work，but when they do，you have to seize(抓�。﹖he chance.”

1. Who won the 2012 Nobel Prize in Medicine?

A. Sir John Gurdon

B. Shiny a Yamanaka.

C. Sir John Gurdon and Shinya Yamanaka

D. Gurdon’s science teacher.

2. In what order are the followings mentioned in the passage?

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c. use a person’s skin to create stem cells

d. move a frog’s genetic information into an egg cell

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A. b—a—c—d—e B. b—d—e—a—c

C. b—d—a—p—e D. b—c—d—a—c

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D. In spite of-his teacher's criticisms, he kept working hard.

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A. Ninety percent of the time things don’t work.

B. Luck favors the prepared mind

C. Life is full of surprises.

D. How to know cells actually work.

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完成句子

根據(jù)漢語意思，完成下列各題。

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Come on, kids! We will you.

2.西安因其悠久歷史而出名。

Xi’an its long history.

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What do you think of the products ?

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，everyone has changed a lot. .

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Coca Cola was invented .

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