Did you notice the number on the book in a library? That number is part of the system used by libraries to organize their collections of books. And it’s used in many countries. The number on each book tells you exactly what kind of book it is. This system is also useful for knowing where to go in the library to find a book.
In this system, there are ten large groups of books. Each of these groups has its own number, such as 100, 200, etc. So, for example, any books about language will have a number 400. On the other hand, any books about history will have a number 900. So, a number in the hundreds place tells you what general group a book is in. If you find a book that has a number in the 500s, you know it is a book about science.
However, science is a big group, so the tens place is used to make a more detailed set of science books. For example, math books are included in the group of science books. Math books all have numbers between 510 and 519. Books about the history of Africa have numbers between 960 and 969.
The system uses the ones place to give a more exact limit for the subject of a book. A book on the history of South Africa will have the number 968.
As you can see, it is a simple system to use as long as you understand what the numbers mean. With this system, the library can keep its books well organized, and people can easily find the book that they want.The reading is about .
| A．libraries |
| B．working in a library |
| C．how numbers are organized |
| D．how books are organized in libraries |
The number system is NOT used to .
| A．find where a book is |
| B．tell you the title of a book |
| C．tell you what kind of book a book is |
| D．organize the collections of books in libraries |
According to the reading, which sentence is TRUE?
| A．The number on a book can’t be bigger than 900. |
| B．There are ten big groups for books in this system. |
| C．History books can have any number between 500 and 900. |
| D．This system uses both numbers and letters for some books. |
A book about math can be found in the same group of books as .
| A．reference books | B．school books | C．science books | D．art books |
Which two numbers would indicate a book about language and a book about science?
| A．439 and 493 | B．439 and 568 | C．530 and 560 | D．563 and 436 |
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B． plan your time
C． make your mother angry
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A． repair your TV
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B． 299
C． 199
44． Where would you be most likely to find the two texts？
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B． In a story book．
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阅读短文，将方框里的五个句子还原到短文当中．
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A．One idea is to test yourself． B．Even worse，you could have an English test． C．She believes they are not as useful as other habits． D．These methods are commonly used in schools around the world． E．So it's possible that you are underlining something not so important． |
Imagine you have a history or math test in school．（76） How should you prepare for this terrible event？
Should you reread your history，math or English books？What about underlining important words or sentences？（77） But are these truly the best methods？
Mary Pym，an American scientist，says that both rereading and underlining are ineffective（无效的）study tools，but better than not studying at all．（78）
When you reread something，you are not trying to actively receive the information．It seems that you already know the information because you've already read it．
The problem with underlining is that you don't always know what the most important information is．（79） ．
What should you do if rereading and underlining are not the best ways to study for a test？
（80） simple cards and practice exams can help when you want to make sure that you have learned something．
No matter what methods you choose，you should know that effective learning takes time and effort．
Many children spend a lot of time watching or playing with electronic media﹣from televisions to video games，computers and other devices（设备）．
So，it is natural that parents should wonder about the time children spend looking at a TV or computer screen．Americans say"screen time"when they talk about any time children spend in front of an electronic device．
Perhaps parents can stop worrying so much about screen time，at least for older boys and girls．In October 2016，the American Academy of Pediatrics （AAP） listed several suggestions for parents and child care workers．Here are some of the suggestions．
•Avoid digital media use in children younger than 18 to 24 months．
•For children aged 18﹣24 months，avoid letting the child watch media alone．And avoid using media as a way to comfort your child．
•For children two to five years of age，allow one﹣hour screen time on"high﹣quality（质量）programming"a day and watch it with your child．
•For children aged 6 and older，don't spend too much time using media．Also，make sure that screen time does not take the place of healthy sleep，exercising，doing homework and other activities．
•Make sure to have media﹣free time together as a family，such as dinner or driving．Also make some areas of the home media﹣free．Turn off your child's electronic devices an hour before bedtime．
（1）What is"screen time"according to Americans ？
A．A kind of timing system（系统）．
B．A survey on electronic media
C．Any time children spend in front of electronic media．
D．Any electronic device children like to play with
（2）What did AAP do in 2016 after ？
A．They gave some practical suggestions．
B．They told parents how to reduce their children's screen time．
C．They trained many child care workers．
D．They raised much money to stop children using electronic devices．
（3）How do parents deal with the screen time for children two to five years of age ？
A．Choose proper programs and watch with them．
B．Play with them for at least one hour．
C．Avoid letting them watch TV．
D．Don't worry about them．
（4）How does AAP explain too much screen time ？
A．An hour or more every day．
B．Using too many electronic devices．
C．Screen time takes the place of other activities
D．Using electronic media to comfort the children．
（5）What is media﹣free time ？
A．It is the time you can use media freely．
B．It is the time you cook or drive．
C．It is the time to be with your family．
D．It is the time you stay away from electronic devices．
A class teacher，in my opinion，plays an important role in a child's development．Every year when my daughter moves to a new class，I have a usual big worry﹣her new class teacher．This year，she is moving to Class Three and I can't wait to see how things are going on．
Last year，my daughter did not like her teacher at all．It was so bad that she did not look forward to school．It was a year full of trouble and worries．
This year，Miss Purity is gentle and humorous．It's hard not to like her．Here are the changes in my daughter．
She becomes an early bird．Last year，mornings were like a fight because I had to force Tasha to hurry up when she was preparing for school．I had to pull her out of bed，tell her to take breakfast and then drove her to school．But now，our mornings are like a party．She wakes up early，prepares everything at a high speed and then rushes to school to be with Miss Purity．
She's happy．She enjoys school and school work and keeps talking about what they did at school when she comes home．
She's responsible．She used to be careless and forgetful．But now she never forgets even her water bottle at school．She makes her bed and helps in the kitchen
Her diary is full of praises．The diary is the tool of communication between the teacher and the parents．Last year，her diary was always full of negative reports．One time，she poured water in a child's lunchbox，another time she threw another kid's textbook in the toilet．Now she began to share her snacks with those who did not have anything．She's always volunteering to clean the blackboard，the teacher's chair and desk．
She does well in school．Finishing her classwork was such a big problem．She had to do it at home．But now，she finished both the classwork and homework at school．
66．What is the big worry of Tasha's father every year ？
A．Who will be Tasha's class teacher．
B．Which class Tasha will be in．
C．How Tasha goes to school in the morning．
D．What Miss Purity looks like．
67．What did Tasha do when she didn't like her class teacher ？
A．She had a fight with her mother in the morning．
B．She didn't want to go to school．
C．She missed a lot of classes．
D．She refused to do classwork and homework．
68．What does"early bird"mean in the passage ？
A．It is a lovely little child．
B．It is the most beautiful bird．
C．It is someone who lives alone．
D．It is someone who gets up early．
69．Which of the following is not true about Tasha's past ？
A．She couldn't finish her classwork at school．
B．She often forgot things at school．
C．She didn't get on well with her classmates．
D．She was careless and silent．
70．What is not mentioned about the changes in Tasha．
A．The progress with Miss Purity
B．Her hobbies
C．Her habit of living
D．Her behaviors at school．
This Thursday，across the US，kids are going to work with their parents instead of going to school．
They can help their parents do some cleaning，send e﹣mails and deal with other daily things．Because April 28 is Take Our Sons and Daughters to Work Day all over the US．This holiday shows kids what it means to be a grown﹣up in the working world．
I still remember when this day started，I was very happy．Not only did I have the chance to leave the
school，but I also could sit in my dad's taxi all day long and we would go to a restaurant for lunch．
I couldn't read my book in the car as I would get carsick（晕车） and my dad didn't like to
turn on the radio．I got hot and uncomfortable．People wouldn't get into his taxi because they thought
he already had a passenger：me﹣﹣so nothing happened．It seemed years before we went out for lunch．In fact，I started to miss the school．
Although the purpose of the day is to give kids a chance to experience possible jobs in their futures，I got something completely different from the day．I learned to value school life．Where else can you play with your friends，do science experiments，read great books and write stories all in one day？
Just like you'll have to learn to love your job later in life，learn to love school now． If you don't，try spending the day at work with your dad．
任务一：What can the kids help their parents do this Thursday？
任务二：请选出能填入文中 处的最佳选项． （填写字母代号）
A．Of course，I enjoyed myself and felt free like a bird．
B．But after only 40 minutes of driving around the city，I was very bored．
C．But soon I got used to this taxi ride around the city with my father．
任务三：将划线句子翻译成中文．
任务四：What does the passage mainly talk about？
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