题型:阅读选择 题类:模拟题 难易度:普通
广东省广州市2018年英语中考模拟试题(五)
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.
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
时间 | 活动 |
7:00 a. m. | 起床 |
7:50 a. m. | 坐公共汽车去学校(Mary的家距离学校大约5千米,要花15分钟) |
11:50 a. m. | 吃午饭 |
4:00 p. m. | 去游泳俱乐部 |
9:00 p. m. | 睡觉 |
要求:
1. 要点齐全,表达清楚,内容连贯,无语法错误。
2. 词数不少于80(开头已给出,不计入总词数)。
I am Alan, a middle school student. This term, I have a new friend Mary.
include hunger clean little take |
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There are many other ways that are good for your body, {#blank#}3{#/blank#} doing exercise . For example, swimming is a great no-sweat exercise. It gives you a full-body exercise and increases your energy. It even doesn't make you sweaty, because the water around you will keep your body cool. A shower will get you{#blank#}4{#/blank#} unan a bath. {#blank#}5{#/blank#} a shower is also good for health.
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