As a child - and as an adult as well - Bill Gates was untidy. His mother made weekly clothing plans to help him. On Monday he might go to school in blue, on Tuesday in green, on W1. in brown, on Thursday in black, and so on. Bill Gates hated wasting time, both at work and during his spare time. Every year, he and his friends would go to summer camp. Bill liked soccer and other sports. One of his friends at summer camp said, "We all know that Bill is c2. than us. Even when he was nine or ten years old, he talked like an adult and could express himself in ways that none of us understood."
Bill Gates did also better in math and science. His parents sent him to an all-boys' school for top students. In 1968, he started to have computer lessons at school. Bill and his best friends, Kent Evans and Paul Allen, got interested in it i3.. Whenever they had free time, they would run over to the computer room to use the computers.
At the age of 14, Bill Gates started to write short programs for the computer. Why was Bill so good a4. programming? One of the reasons is because it was about math. What's more, Bill and Paul enjoyed reading m5. like 'Popular Electronics', and Bill also read business newspapers. At last, the two men made up their mind to set themselves up as a company.
数学奥赛暑假天天练南京大学出版社系列答案
南大教辅抢先起跑暑假衔接教程南京大学出版社系列答案科目：初中英语 来源：江苏省南京市玄武区2019-2020学年八年级上学期期末英语试卷 题型：阅读单选
We can use milk to make all kinds of things. Here’s how to make plastic:
You will need | Teaspoon Vinegar（醋） Measuring cup Whole vitamin D milk (nonfat or low-fat) Sauce pan Adult helper Stove |
Do this | 1. Pour 2 cups (500 ml) of milk into the sauce pan. 2. Ask the adult to heat the pan slowly on the stove. 3. Just before the milk boils, bubbles will start to appear on its surface. 4. When that happens, slowly put in two teaspoons of vinegar. 5. Keep stirring(搅拌) until the milk becomes rubbery(橡胶状) and hard to move. 6. Remove the pan from the heat and let it cool. 7. When the milk is completely cool, remove the solid from the pan, squeeze it into a ball and wash it under cool running water. |
What happened? | A chemical reaction takes place between a chemical(化学物质) in the warm milk and acid(酸) in the vinegar, and the result is a rubbery solid that does not dissolve in water. The milk has to be heated for this experiment to work. The white glue that comes in a squeeze bottle is one of the many useful things. That can be made from the chemicals in milk. |
1.What do we need to make plastic?
A.Two cups of low-fat milk. B.An adult helper.
C.Vinegar, sugar and acid. D.The white glue.
2.Which of the following is true about the experiment?
A.The milk should be cool for doing the experiment.
B.Keep stirring the mixture of milk and water until it is cool.
C.Bubble will start to appear when the milk becomes rubbery.
D.A chemical reaction takes between the warm and the vinegar.
3.Which of the following is the best title for the passage?
A.Different Uses of Milk B.Glue Made from Milk
C.Different Uses of Plastic D.Plastic Made from Milk
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科目：初中英语 来源：东营市2019-2020学年中考模拟《黑卷》英语试卷 题型：单选题
—Have you ever come to Dongying Swan Lake(天鹅湖) before?
—Yes. This is my ________ visit here. I have been here twice before.
A.two B.second C.three D.third
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科目：初中英语 来源：沈阳市2019-2020学年中考模拟《白卷》英语试卷 题型：完型填空
Do you have any online classes? It is________to take classes at home. All you need is a computer and a headset（耳机）.________, most students don't seem to like online classes. According to a recent survey, ________of the students want to take such classes, but only about 33 percent. Over 1, 500________from 10 cities took the survey.
Many students said it is difficult________them to focus on studying while taking online classes. This was_______ for Lian Ruohan, 15, at the Affiliated（附属的）High School of Peking University. “There are no classmates, no real teachers________me. I can surf the Internet or do other things if I want to. It's________to always stay focused,” she said.
Lian prepares a lot________she takes classes to make sure she will pay attention. She also pushes herself to______with teachers. Students can________and answer questions while taking online classes.
But Wen Jiayi, 14, at the Yucai Middle School Attached to Chengdu No. 7 High School, ________online interaction（互动）isn't enough. "The online teachers don't________get to know me. When I don't hand in homework, all I get is________short message instead of real concern（关心）,” she said.
“However, online classes still have other________. It saves time and money compared with offline classes. Also, if I don't understand some parts of a lesson, I can watch it over again,” Lian said.
1.A.common B.possible C.fantastic D.strange
2.A.However B.Perhaps C.Finally D.Therefore
3.A.both B.each C.all D.some
4.A.students B.teachers C.schools D.classes
5.A.on B.with C.for D.to
6.A.right B.true C.wrong D.important
7.A.asking B.teaching C.calling D.watching
8.A.hard B.easy C.simple D.useful
9.A.after B.before C.when D.as
10.A.do B.agree C.communicate D.compare
11.A.come up with B.put up with C.catch up with D.end up with
12.A.likes B.takes C.thinks D.realizes
13.A.nearly B.probably C.quickly D.really
14.A.the B.a C.an D.（不填）
15.A.instructions B.advantages C.questions D.answers
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科目：初中英语 来源：沈阳市2019-2020学年中考模拟《白卷》英语试卷 题型：单选题
The baby panda is not old ______________to eat bamboo.
A.so B.very C.too D.enough
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科目：初中英语 来源：上海市2019-2020学年七年级上学期期中英语试卷 题型：句型转换
Sentence transformation.
1.Aunt Ethel never goes to the movies by herself. (改成反意疑问句)
Aunt Ethel never goes to the movies by herself, _________ _________?
2.He chats with his pen-friend on the Internet every day. (用at 7:00 yesterday evening作时间状语改写句子)
He _________ _________ with his pen-friend on the Internet at 7:00 yesterday evening.
3.Julia went to the supermarket when her mother came home. (保持句意不变)
Julia _________ go to the supermarket _________ her mother came home.
4.It took Mrs. Randall a couple of days to do her project. (保持句意不变)
Mrs. Randall _________ a couple of days _________ her project.
5.Besides that, he skates too carelessly. (保持句意不变)
_________ _________, he skates too carelessly.
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科目：初中英语 来源：上海市2019-2020学年七年级上学期期中英语试卷 题型：单选题
Only a few students in English class prefer _________ to the teacher to _________ in front of the class, for they are afraid of making mistakes.
A.listening ... talking B.to listen ... talk
C.to listen ... talking D.listening ... talk
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科目：初中英语 来源：福建省2019-2020学年中考成果检测卷（一）英语试卷（含听力） 题型：阅读单选
Guinness World Records Museum
Welcome to the Guinness World Records Museum! Here you will be surprised to see many things beyond your imagination.
Address: 329 Alamo Plaza, San Antonio, TX 78205
Opening Hours:
From September to April:
10:00 a.m. to 7:00 p.m. from Sunday to Thursday
10:00 a.m. to 9:00 p.m. on Friday and Saturday
From June to August:
10:00 a.m. to 10:30 p.m. from Sunday to Thursday
10:00 a.m. to 11:30 p.m. on Friday and Saturday
Ticket Price:
Adult: $14.95 for 2 attractions（名胜）; $18.95 for 4 attractions; $22.95 for all attractions
Child（4-12）: $8.95 for 2 attractions; $11.95 for 4 attractions; $14.95 for all attractions
★It is free for the old over 60!
In the GWR Museum you can enter the different exhibition halls（展览厅）. In each of these halls, you can see many different kinds of world records. In some halls, you are even given a chance to do something so that you can know better how a record was set. If you feel tired, just come into the Rest Area, where you can either have a cup of coffee or have some delicious snacks. But please remember, never take your food or drinks into the exhibition halls.
For more information, please contact（联系）us!
Tel: 1-323-4636433
Website: http://www.guinnessmuseumhollywwood.com
1.You can visit the Guinness World Records Museum_____________.
A.at 9:00 a.m. in August on Friday
B.at 7:00 a.m. in June on weekends
C.at 8:00 a.m. in July on weekends
D.at 2:00 p.m. in December on weekends
2.The Guinness World Records Museum is NOT open in_____________.
A.March B.May C.August D.September
3.If an 8-year-old son and his mother visit two attractions, they should pay_____________.
A.$23.90 B.$14.95 C.$14.90 D.$8.95
4.What should you remember when you visit?
A.There is no Rest Area in the museum.
B.Don't do anything in the exhibition halls.
C.Never take food or drinks into the exhibition halls.
D.You can only enter a few exhibition halls to visit.
5.What can we do in the exhibition halls?
A.We can have a cup of coffee.
B.We can set a new world record.
C.We can have some delicious snacks.
D.We can know better how a record was set
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科目：初中英语 来源：河北省2019-2020学年七年级上学期期末英语试卷 题型：单选题
Helen doesn’t eat apples or bananas. She doesn’tlike .
A.vegetables B.sports C.fruit D.plants
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