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Unit 5 Great inventions
Lesson 4
一、单词填空。
1. In the supermarket, there’s a special area for ________ (乳制的) products like cheese and yogurt.
2. To make milk safe, factories usually __________ (巴氏杀菌法消毒) it at a certain temperature.
3. My brother wants to be a ____________ (科学家) when he grows up.
4. The teacher explained the ____________ (过程) of experiment in class.
5. Please ____________ (加热) the oil and add the onions.
6.To study how to prevent food from going bad, we can ask a ______________ (微生物学家) for advice.
二、完成句子。
1.去年暴风雨期间, 许多家庭都经历了一段艰难的时光。
Many families ________ ________ a tough time during the storm last year.
2. 要是在旅途中吃太多零食, 你可能会生病。
If you eat too many snacks during the trip, you may ________ ________.
3.他把全部心血倾注到这个项目中。
He________ his heart and soul________ the project.
4.我们还在搬往新办公室的过程中。
We’re still in the ________ ________ ________ to the new office.
5.让我们为这对新人干杯! (a toast to sb.)
__________________________________________
三、补全对话
选择正确选项，其中有一个选项与对话内容无关。
(Li Wei and Tan Mei are visiting the science museum.)
A: Wow! There are so many great inventions in history here.
B:　1． 　
A: Don't worry! I can help you. How about going to the American Show first
B: Good idea!
A: Look, a light bulb!
B: Yeah.　2． 　
A: It was invented by Thomas Edison. He invented over two thousand things.
B:　3． 　
A: I agree with you.
B: Look, there are some pictures of the airplane.　4． 　
A: It was invented in 1903.
B:　5． 　
A: Maybe it was made of metal, wood and plastic at that time.
B: I have really learned a lot from you. Thanks.
A: You're welcome.
A. Who invented it
B. What was it made of
C. Yes, but I know little about them.
D. When was the airplane invented
E. Wow, he was really a great inventor.
F. Was Thomas Edison a great inventor
四、阅读
Alexander Graham Bell was a great inventor. He is most famous for inventing the first working telephone.
Early Life Bell was born in Scotland in 1847. As a young boy, he loved doing experiments (实验) to learn new things. He made his first invention at the age of 12. Leaving Scotland Bell and his parents moved to Canada in 1870. They bought a farm. Bell set up a workshop there. He did many experiments with electricity and sound. The following year, Bell got a job as a teacher in the US. He taught deaf (聋的) children how to speak.
After the Telephone Bell went back to Canada. He did many more experiments and made more inventions. Inventing the Telephone Bell wanted to invent a machine to send voices through a wire (电线) so that someone could talk with a person far away. He worked very hard and finally invented the telephone in 1876.
1．What happened to Bell when he was 12
A．He made his first invention.
B．He set up his own workshop.
C．He began to love doing experiments.
D．He moved to Canada with his family.
2．When did Bell start working in the US
A．In 1847. B．In 1870.
C．In 1871. D．In 1876.
3．Why did Bell invent the telephone
A．To get messages easily. B．To see someone far away.
C．To send messages through the air. D．To send voices to faraway places.
4．What did Bell do after inventing the telephone
A．He invented more things.
B．He went back to Scotland.
C．He stopped doing experiments.
D．He got a job of teaching deaf children.
5．In which part of a magazine can we find the reading
A．Health Care B．Life Stories
C．Sports News D．Art World
答案
一、1.dairy
2.pasteurize
3.scientist
4.process
5.heat
6.microbiologist
二、1.went through 2.get sick
3.poured into 4.process of moving
5.Let’s make a toast to the new couple!
三、CAEBD
四、ACDAB

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