Scientists in Britain and the United States have made a new kind of enzyme(酵素) that eats plastics (塑料). With its help, plastics can be turned into smaller parts and go away quickly. Scientists believe that, in the future, it could solve the problem of plastic pollution.
The enzyme is able to break down(分解) PET, a form of plastic. PET was first made in the 1940s and is now widely used to make plastic bottles. It can stay in the environment for many years and pollute large areas of land and water. So it has always been a headache to deal with the waste from PET and other plastics.
The researchers found it while examining the structure a natural enzyme in Japan. They found that the natural enzyme was helping to break down PET plastics. So, they decided to make small changes to the enzyme by adding some amino acids(氨基酸). It made the natural enzyme's plastic-eating abilities work faster and better.
John McGeehan, one of the lead researchers, said, "We have made an improved enzyme. It's better than the natural one. And we are trying to make more improvements to it." He went on, "the enzyme is not bad for humans or animals, and it is friendly to the environment. So we are thinking about putting it into wider use."
The team is now trying to make the enzyme break down PET in large quantities (大量的). “We’ll see that the plastic pollution may be stopped with this technology. However, there is still a long way to go," John McGeehan added.
1.According to the scientists, the enzyme may solve the problem of ______ pollution.
A.air B.water C.light D.plastic
2.The researchers found that a natural enzyme helped eat plastics ______.
A.in Britain B.in the US C.in Japan D.in China
3.Which of the following TRUE according to the passage?
A.The scientists are still trying to improve the enzyme.
B.The enzyme will pollute large areas of land and water.
C.The natural enzyme works better than the improved one.
D.The natural enzyme is bad for humans and animals.
4.The passage is written in a / an______ tone(语气).
A.sad B.hopeful C.angry D.crazy
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小学生10分钟应用题系列答案科目：初中英语 来源：2020年重庆市第二外国语学校中考模拟英语试卷 题型：听短对话回答问题
A.The book. B.The weather. C.The radio program.
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科目：初中英语 来源：黑龙江省齐齐哈尔市甘南县2019-2020学年九年级下学期期中英语试卷 题型：信息匹配
1. You’ll need to help your teen find what hobby really interests him or her. Then, you’ll have to help your teen find all of the necessary things to enjoy his or her new hobby. This may be hard to do in your busy parenting schedule. Here are four great reasons to work it in:
2.By finding an area of interest, a teen can build competence and skill. This leads to positive results and builds your teen’s confidence.
3.Our likes and dislikes help bring out who we are as people. Hobbies help by sending a message, “I like doing this. This makes me feel good about myself. Therefore, this is a part of who I am.”
4.Boredom is like the plague(瘟疫,传染病) to a teen and it can have the same type of terrible results. Bored teens are easy to have a connection with negative peers. Helping teens develop a hobby is helping them stay out of trouble.
5.When your teen is involved in (卷入,介入)a hobby, you can easily find something to praise him or her about. You can use your teen’s hobby to keep balance in your communication with your teen when things have been hard.
A.Hobbies will give you a reason to praise your teen
B.Hobbies help build your teen’s confidence
C.Hobbies stop your teen from getting bored.
D.Encouraging your teen to develop a hobby will take some time and effort on your part.
E.A hobby helps your teen have a sense of his or her identity(身份).
F.Hobbies can be used to keep balance.
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I was similar to my mother when I was a little girl .(改为同义句)
I ______ ______ my mother when I was a little girl.
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科目：初中英语 来源：重庆市2019-2020学年八年级下学期开学检测英语试卷 题型：根据中/英文提示填空
Thanks for ______(提供) great chances for the students. They do realize kindness can make a big difference to their future.
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科目：初中英语 来源：重庆市2019-2020学年八年级下学期开学检测英语试卷 题型：单选题
Jimmy travelled to Africa last winter and all his money ______, so he has to do everything he can ______ money for another trip.
A.runs out of; saving B.ran out; save C.ran out; to save D.ran out of; to save
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科目：初中英语 来源：重庆市2019-2020学年八年级下学期开学检测英语试卷 题型：单选题
—Peter, could you please ______ the rubbish on the ground?
—Sorry, mum. I will ______ at once.
A.not to throw; pick up it B.not throw; pick them up
C.not to throw; pick up them D.not throw; pick it up
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— Every student wants to make his dreams come true.
— Of course, where there is a will, there is a way. ______ you make, ______ you will achieve your dreams.
A.The more efforts; the easier B.The more efforts; the more easily C.The less efforts; the more easily
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科目：初中英语 来源：广西来宾市兴宾区2019-2020学年九年级上学期期中英语试卷 题型：阅读单选
Ray Charles, a black singer and pianist of the USA. He had won 12 Grammy Awards(格莱美奖) and performed at 10, 000 concerts around the world. Many musicians called him simply “The Genius”(天才).
Ray Charles was born into a poor family, without a father. When he was 5 years old, his younger brother died, and around the same time, Charles started to lose his sight. By the age of 7, he was completely blind. He had already been learning the piano for a year, and when he went blind, his mother knew this would be the only way he would make any money in the future. All his life, Charles remembered her saying: “Do it right, or don't do it at all.”
Later he went to a school for blind and deaf children. There the teachers also encouraged him to study music. Sadly, while he was still at school, his mother died. He left school and in the early 1950s Charles organized a group of players. He sang, played the piano and wrote music. He made many classical CDs with famous artists such as Elton John and the Beatles.
In 2003 a film of his life Ray was made. The part of Charles was played by a younger actor and musician called Jamie Foxx. The film director brought Foxx to meet Charles. After they had been playing together for two hours, Charles, then aged 73, jumped up and said, “He's the one. He can do it.” A year later Charles died aged 74. The film of his life has been as popular as his songs and means that the memory of Charles' music will live on.
根据短文内容，选择最佳答案，并在答题卡上将选定答案的字母标号涂黑。
1.What can we learn from Ray's childhood story?
A.His father died when he was 5 years old.
B.He started to lose his sight at the age of 7.
C.He was born in a rich musician family.
D.He started to learn the piano when he was 6.
2.Ray Charles' mother encouraged him to play music because ________.
A.his father was a musician as well
B.it would help him get used to being blind
C.it was a good way for a blind person to get money
D.his teacher thought he was a genius
3.Ray Charles went to a school for ________.
A.normal children B.deaf and blind children
C.talented children only D.children without parents
4.Ray Charles thought that Jamie Foxx ________.
A.was the right person to play him in the film B.was a good film-maker
C.was the wrong person to play him in the film D.was a good director
5.What is the main idea of the last paragraph?
A.Becoming a musician. B.Childhood story.
C.The film of Ray's life. D.Master of many styles.
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