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(2018·山东临沂)What was discovered by accident? The answer is penicillin (青霉素). It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a “staph” infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, this would not happen. Staph was almost sure death.
Everyone wanted a medicine. Laboratories worked day and night. They grew the staph in small dishes. Then they tried to kill it. Nothing worked.
The laboratory dishes had covers on them. They kept things from falling into dishes. Molds (霉菌) were a big worry. They are always in the air. You can’t see them. They’re too small. There are thousands of different molds. Molds can make an experiment (实验) fail. That’s why dishes are covered.
Dr. Alexander Fleming was working to kill the staph germ. He worked for years. One day he took a cover off a dish. He looked inside. There was a thick growth of staph germ. There was also some mold. Then he saw something strange. Where the mold was, there was no growth of staph. This is what Fleming probably thought. “By accident, I found a mold to kill the dreaded staph.”
This is how penicillin was found. But here’s the real miracle (奇迹). There are thousands of kinds of molds. But only one kind can kill staph. The mold must have fallen into the dish a few days before. The cover was probably off only a few seconds (秒). In those few seconds the right mold fell into the right dish. Another man might have thrown the dish away. But Fleming was very careful and smart. He understood what the mold did. How lucky the humans were!
根据短文内容，选择最佳答案
1.During the experiments to find a medicine for staph infections, ________.
A. the dishes were not covered
B. staph and mold were put together
C. mold was kept in small dishes
D. staph was grown in small dishes
2.The word “ dreaded” means “_______”.
A. famous B. scary
C. health D. endangered
3.The last paragraph suggests that _______.
A. accidents happen to everyone
B. the careful person does not have accidents
C. the careless person will miss valuable chances
D. luck is enough when doing scientific experiments
4.Most of this passage is written by ______.
A. telling an unusual story B. showing the results of experiments
C. offering some reasons D. giving some advice
5.This passage is mainly about ______.
A. medicine for a staph infection B. useful accidents
C. Dr. Fleming’s research D. discovering penicillin
难度: 中等查看答案及解析
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Every year during the National People’s Congress (全国人民代表大会), there is an important report. It is the Government Work Report (政府工作报告). On March 5, Premier Li Keqiang gave this year’s report at the Great Hall of the People in Beijing.
The report is about the Chinese government’s work. How did the government do last year? And what does it plan to do this year?
Take a look at some parts of this year’s report!
Fast facts about the Government Work Report
Last year’s work:
· China’s GDP grew by 6.6 percent. The GDP is the value (价值) of everything made in a country in a year.
· Per-capita disposable income (人均可支配收入) grew by 6.5 percent.
· About 13.61 million new jobs were created in cities.
This year’s plan:
· Over 10 million people will be lifted out of poverty (贫困). Each of them will make over 2,300 yuan a year.
· Air pollution will decrease (减少).
· Mobile phone users will pay 20 percent less for mobile internet services (移动网络服务).
The government’s job is to help us live better lives. It has to work hard in order to do this. This year’s Government Work Report asks the government to do more. Take a look!
Government works for the public; words can’t compare with actions.
Struggle creates history; hard work makes a bright future.
Make big advances in green development.
Only when the elderly live happily can the young have a future to look forward to.
1.Which sentence is right according to the report?
A. China’s GDP grew by 6.5 percent. The GDP is the value (价值) of everything made in a country in a year.
B. Per-capita disposable income (人均可支配收入) grew by 6.6 percent.
C. Over 10 million people will be lifted out of poverty (贫困). Each of them will make over 2,300 yuan a year
D. Mobile phone users will pay 30 percent less for mobile internet services
2.Our government will do a lot for people, which is mainly for old people?
A. Make big advances in green development.
B. Only when the elderly live happily can the young have a future to look forward to.
C. Government works for the public; words can’t compare with actions.
D. Struggle creates history; hard work makes a bright future.
难度: 中等查看答案及解析
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Alice in Wonderland Chapter 2
Alice was not hurt, so she jumped to her feet in a moment. She looked up, and found the White Rabbit was still in sight. She was close behind it when she turned the comer, but the Rabbit was no longer to be seen. She found herself in a long, low hall.
There were doors all around the hall, but they were all locked.
Alice walked sadly down the middle, wondering how she was ever to get out again.
Suddenly, she came upon a little three-legged table. There was nothing on it but a tiny golden key, and Alice's first idea was that this might belong to one of the doors of the hall.
But, alas! Either the locks were too large, or the key was too small. However, on the second time round, she came upon a low curtain she had not noticed before and behind it was a little door.
She tried the little golden key in the lock, and she was pleased to find it fitted!
1.What did Alice want to do when she got to the hall?
A. She wanted to know how to get some food
B. She wanted to know where her sister was
C. She wanted to find out how to get out again
D. She wanted to meet the Rabbit
2.Where did Alice find the tiny golden key?
A.
B. 
C. 
D. 
3.How did Alice feel when the gold key fitted into a lock?
A. Tired B. Shocked C. Happy D. Interested
4.Which is TRUE according to the passage?
A. Alice had never seen the White Rabbit before she got to the hall
B. Some of the doors around the hall were locked
C. Alice noticed the little door as soon as she entered the hall
D. The passage is from Alice in Wonderland
难度: 中等查看答案及解析
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Most people follow others blindly just because they feel it safe to follow a large number people. In some rare cases it might be right to follow the crowd, but in most cases this can be a big mistake. In fact there are reasons why we shouldn’t follow the crowd blindly.
According to a study, people often follow the crowd when they aren't sure about the direction they should take. This means a large number of people could be following others without understanding what's right and what's wrong! This makes more people follow and as a result most people move in a certain direction even if it isn’t right.
A man who wants to be successful always hopes for others' guidance and he usually follows the same path of most people, but the question this man never asks himself is: are all of those people successful? Of course not! If you want to follow a crowd, then follow a successful one. However, in real life you'll only find one successful person among hundreds of people, and that's why following the crowd makes no sense at all.
Most people act emotionally (感情用事地) without thinking wisely. If you always follow others because they're greater than you in number, then sooner or later you'll discover that you're taking emotional decisions you might regret later.
However, should we never follow the crowd? No. I'm not trying to say you should never follow the crowd, but instead I'm just asking you to think wisely before you take a decision. If you find others are right, there is no problem in following them, but if you have doubts about the direction they're moving in, don't follow them blindly.
1.According to the passage, most people like to follow others because_________.
A. they feel it kind of safe
B. they don't want to be different
C. they believe they take the right direction
D. they want to make good impressions on people
2.Which is right according to the author’s opinions?
A. It is wrong to follow other people.
B. It takes much time to think wisely.
C. You shouldn't be sorry for what you have done.
D. You should use your brain before following others.
3.What is the text mainly about?
A. Results of following others.
B. Reasons for not following others blindly.
C. Advantages of making wise decisions.
D. Ways of finding successful people to follow.
4.Which of the following best shows the structure of the text?
A.
B. 
C. 
D. 
难度: 困难查看答案及解析
C. 