-
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 was at bottom of his class. Now, aged 79，the very same Gurdon shared the 2012 Nobel Prize in Medicine with Japanese stem cell (干细胞) researcher Shinya Yamanaka.
Like so many scientists, Gurdon shows us where the power of curiosity and perseverance(坚持) can lead.
When he was 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(批评), 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 of the adult frog. This technique later helped to create the sheep Dolly in 1996，the first cloned mammal(哺乳动物) in the world.
In 2006，Gurdon’s work was developed by Yamanaka to show that a sample(样本) of a person’s skin can be used to create stem cells. Using this technique, doctors can repair a patient’s heart after a heart attack.
“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(抓住) the chance.”
1.Who won the 2012 Nobel Prize in Medicine?
A. Sir John Gurdon
B. Shinya Yamanaka
C. Sir John Gurdon and Shinya Yamanaka
D. Gurdon’s science teacher
2.What does the underlined word “ridiculous” mean?
A. 荒谬的 B. 无畏的 C. 荒废的 D. 无知的
3.In what order are the following events mentioned in the passage.
a. create the sheep Dolly
b. take a cell from an adult frog
c. use a person’s skin to create stem cells
d. move a frog’s genetic information into an egg cell
e. grow into a clone of the adult frog
A. b-a-c-d-e B. b-d-e-a-c C. b-d-a-e-c D. b-c-d-a-e
4.According to the passage, which statement is TRUE?
A. Sheep Dolly was the first cloned animal in the world.
B. Gurdon ranked first at his high school in biology.
C. It’s impossible for the doctors to repair a patient’s heart after a heart attack.
D. According to the science teacher, Gurdon was not a gifted student.
5.What’s the main idea of the passage?
A. Ninety percent of the time things don’t work.
B. Luck favors the prepared mind.
C. Life is full of pleasure.
D. How to know cells actually work.
九年级英语阅读理解中等难度题查看答案及解析
-
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 in science and finished bottom of his class. However, aged 79, the very same Gurdon shared the 2012 Nobel Prize in Medicine with Japanese stem cell(干细胞) researcher Shinya Yamanaka.
Like so many scientists, Gurdon shows us where the power of curiosity and perseverance(坚持不懈) 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 criticism（批评）, Gurdon followed his curiosity and kept working hard. He went to the lab earlier 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 the sheep Dolly in 1996, the first cloned mammal(哺乳动物) in the world.
In 2006, Gurdon's work was developed by Yamanaka to show that a sample(样本) of a person's skin can be used to create stem cells. Using this technique, doctors can repair a patient's heart after a heart attack.
“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 (抓住) the chance.”
1.Who won the 2012 Nobel Prize in Medicine?
A.Sir John Gurdon. B.Shinya Yamanaka.
C.Sir John Gurdon and Shinya Yamanaka. D.Gurdon's science teacher.
2.What does the underlined word “ridiculous” mean in Chinese?
A.无知的 B.无畏的 C.荒废的 D.荒谬的
3.According to the passage, which statement is true?
A.As a boy, Gurdon was told he was hopeful.
B.Gurdon ranked first at his high school in biology.
C.It's impossible for the doctors to repair a patient's heart after a heart attack.
D.In spite of his teacher's criticism, Gurdon kept working hard.
4.What's the main idea of the passage?
A.Ninety percent of the time things don't work. B.Luck favors the prepared mind.
C.Life is full of surprises. D.How cells actually work.
九年级英语阅读单选中等难度题查看答案及解析
-
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 Nobel Prize in Medicine with Japanese stem cell researcher Shinya Yamanaka.
Like so many scientists, Gurdon shows us where the power of curiosity and perseverance can lead.
When he was 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 information into an egg cell. The egg cell then grew into a clone of the adult frog. This technique later helped to create Dolly the sheep in 1996，the first cloned mammal in the world.
In 2006，Gurdon’s work was developed by Yamanaka to show that a sample of a person’s skin can be used to create stem cells. Using this technique, doctors can repair a patient’s heart after a heart attack.
“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 the chance. ”
根据短文内容，选择最佳答案。
1.Who won the 2012 Nobel Prize in Medicine?
A. Sir John Gurdon
B. Shinya Yamanaka.
C. Sir John Gurdon and Shinya Yamanaka.
D. Gurdon’s science teacher.
2.What does the underlined word “ridiculous” mean?
A.无知的 B.无畏的
C.荒废的 D.荒谬的
3.According to the passage, which statement is TRUE?
A. As a boy, he was told he was hopeful.
B. He ranked first at his high school in biology.
C. It’s impossible for the doctors to repair a patient’s heart after a heart attack.
D. In spite of his teacher’s criticisms, he kept working hard.
4.What’s the main idea of the passage?
A. Ninety percent of the time things don’t work.
B. Luck favors the prepared mind.
C. Life is full of pleasure.
D. How to know cells actually work.
九年级英语阅读理解中等难度题查看答案及解析
-
If you can value what you have and do something to help others, you will find your life is full of ________.
A.anger B.pleasure C.trouble D.difficulty
九年级英语单选题中等难度题查看答案及解析
-
Life is not _________ journey which is full of ups and downs, so never lose heart.
A.hard B.a hard C.smooth D.a smooth
九年级英语单选题中等难度题查看答案及解析
-
Franklin's life is full of charming stories which all young men should know—how he ______ books in Boston，and became the guest of kings in Europe；how he ______ Major General Franklin，only to quit because，as he said，he was no ______，and yet helped to organize the army that stood ______ the trained troops of England and ______.
This poor Boston boy，without a day's ______，became master of six languages and never stopped studying；this neglected apprentice(学徒)conquered the ______，made his name famous，______ degrees and diplomas(文凭)from many colleges，and became forever remembered as “Doctor Franklin”，philosopher，scientist and political leader.
Selfmade，______，the candle maker's son gave light to all the world；the street bookseller set all men ______ of liberty；the apprentice became the most soughtafter man ______ the world，and brought his native land to praise and ______ him.
He ______ America，for what our nation is today is largely due to the management，the forethought，the wisdom，and the ability of Benjamin Franklin.He belongs to the world，but especially he belongs to America.The people around the world honored him while he was living；he is still regarded as the loftiest man by the ______ people today after his death.And he will live in people's ______ forever.
1.
A.bought B.took
C.sold D.lent
2.
A.make B.made
C.was made D.was making
3.
A.teacher B.soldier
C.student D.president
4.
A.before B.after
C.later D.behind
5.
A.Germany B.French
C.German D.American
6.
A.studying B.learning
C.teaching D.schooling
7.
A.flower B.thunder
C.lightning D.cloud
8.
A.accepted B.received
C.took D.learned
9.
A.selfrespected B.selfteaching
C.selftaught D.selflearning
10.
A.lifting B.singing
C.learning D.hearing
11.
A.cross B.through
C.across D.above
12.
A.respect B.memory
C.honor D.love
13.
A.builds B.has built
C.has been built D.built
14.
A.common B.normal
C.native D.noble
15.
A.dreams B.hearts
C.thoughts D.books
九年级英语完型填空简单题查看答案及解析
-
Life is full of ups and downs, and without the downs, the ups will mean
A. something B. everything C. anything D. nothing
九年级英语单选题中等难度题查看答案及解析
-
Life is full of ups and downs, and without the downs, the ups will mean
A.something B.everything C.anything D.nothing
九年级英语单选题中等难度题查看答案及解析
-
Life is full of chances and challenges. For students, we don’t study hard，we will fall other students. At first, I didn’t know the word “exam” meant. Later, I knew an exam was a of competition. In competitions, there were always and losers. As I grew up, I got to know competitions well. In one’s life, there must be competitions, so people could . Each time I saw children games, and heard their laughter, I I were that age again. However, I remembered my parents’ words--You must work very hard have a good future. So I up my pen and began to study hard again.
I was still not what competitions really meant. One day, I was an English-speaking competition. When I went to the stage, I saw other students looking at me kindly. I suddenly knew what the competition was. It was not as cruel my teacher and parents told me. In fact, competitions were important and necessary.
I learned a lot what I experienced. Now I understand 15 about the world. Competitions are important for us all.
1.A. because of B. though C. when D. if
2.A. behind B. after C. over D. before
3.A. how B. where C. what D. who
4.A. few B. kind C. number D. little
5.A. winners B. athletes C. soldiers D. runners
6.A. appreciate B. improve C. combine D. progress
7.A. to play B. playing C. plays D. played
8.A. donated B. hoped C. washed D. wished
9.A. so that B. in order to C. as for D. in order that
10.A. picked B. dropped C. took D. put
11.A. agree B. sure C. believe D. think
12.A. joining B. entered C. joined D. taking part in
13.A. as B. than C. though D. unless
14.A. above B. under C. from D. over
15. A. less B. more C. special D. better
九年级英语完型填空困难题查看答案及解析
-
A Welcoming Way to Show China to the World
Modern life is not easy and full of stress. It will be nicer to get away from all the noise and congestion（拥挤）and live a simpler life in the countryside. This is what popular vlogger（网络视频录制者）Li Ziqi did.
Li was raised on a farm by her grandparents, but at the age of 14 she left the farm to work in the city. However, she found that city life was d1. and decided to move back to the countryside. “When I worked in the city, it was only about survival,” she said, “In the countryside, I am t2.living.”
When Li was back, she began making videos about her daily life and posting them to the Internet. She now has more than 20 million followers on Sina Weibo and over 7.5 million subscribers on YouTube. Her fans admire the way she makes e3. by herself: growing food and preparing traditional Chinese dishes, cutting down bamboo and making furniture, dyeing（染色）cloth and making her own clothes. The videos are beautifully made, but Li says she hopes her videos can provide people with e4. as well as fun. “I want people in the city to know where their food comes from. Some children b5. rice grows on trees!”
The idyllic（田园诗般的）countryside life Li shows has the magical power of making people feel comfortable and relaxed. When we talk about Chinese culture, the first things that come to many people might be bullet trains, 5G technology and fast-developing cities. However, it is actually the more traditional side of China that is much more a6. to people from other cultures. Through her videos, Li lets the world know that Chinese people are good at making works of a7. out of even the simplest materials — this is definitely a way to show China to the world.
九年级英语单词填空中等难度题查看答案及解析