Studying is important to students. But it is always difficult to find enough time to study every subject you need. So a good plan helps you to make sure of your success in study.

Then, how to make a study plan? Well, you can begin with listing all the subjects you need to study and make sure what you need to do for each subject. Next, you should decide how much time you should spend on different subjects. Now, it is a good idea to study at the same time every day. In this way, you actually have a plan you can remember easily. While arranging(安排)time for each subject, you also need to make sure that you still have time for family, friends and rest. This is because you won’t be able to succeed in your studies unless you balance your personal life and your study.

Once the plan is made, the next thing you need to do is to follow it. One of the biggest challenges in following your study plan is that you will be tempted(诱惑)to avoid it and do something relaxing, or fun instead. Luckily, you can fight this temptation by taking breaks. But be sure not to take extra breaks or too long breaks as it can affect your plan. So at the start of your break, set an alarm clock to remind you when your break is over. Also, you need to use your break wisely. For example, go for a short walk, eat a small snack, or listen to some music.

To avoid forgetting to follow your plan, try to get into the habit of looking at your calendar every day. sometimes our plans are hard to follow because some important people in our lives distract(使分心)us from our goals. In order to avoid this, tell people in your life about your plan. Put up a copy of your study guide at home so you and your family can see it, and email a copy to your friends so they know when you have spare time.

根据短文内容,判断句子正(T)误(F)。

1.A good study plan is helpful in achieving your success in study.

2.Make a study plan of the most important subject you need to study.

3.Arrange time for family, friends and rest to balance your personal life and your study.

4.Follow your plan and study at the same time every day, or you will affect your plan.

5.Email your plan to your teachers so they know when you are free.

Have you ever had dreams about building a robot? Or putting together a spaceship? Or even seeing your face made out of chocolate? Done. All you need is a 3-D printer!

The possibilities of 3-D printing seem endless. All the user has to do is to design(设计) an object on the computer and choose a material(材料) to print in. The printers print in hundreds of different materials including glass, sugar and even skin! When the user presses “print”, the 3-D printer spreads the material layer(层) by layer and like magic the object is produced.

The first 3-D printer was invented in 1986 by an American, Charles Hull. But 3-D printing has only become cheap enough recently for most people to use. Designers now use 3-D printing to create unusual things. The Dutch artist Dirk Vander Kooj prints furniture made from old fridges. And doctors have used 3-D printing to print human body parts! The Telegraph reported in February that scientists from Cornell Medical College even printed a man-made ear.

But like a lot of new technologies, if 3-D printing gets into the wrong hands, it can be dangerous. In 2011 a group of four men in the US used 3-D printing to produce ATM skimmers (提款机盗刷器). These were placed on an ATM and stole over $400,000 from users of the ATM. It is terrible to think thatcriminalslike them might one day use a 3-D printer to print a gun.

But for better or for worse, 3-D printing has been put into use. In a few years, you’ll probably be wondering how you could ever live without your 3-D printer!

1._______ invented the first 3-D printer.

A.Charles Hull B.Dirk Vander Kooj

C.A doctor called Cornell D.Four men in the U.S

2.What is the correct order for people to use a 3-D printer?

a. Choose a proper material.

b. Press the print button.

c. The 3-D printer spreads the material.

d. Use a computer to design an object.

A.a-b-c-d B.d-a-b-c

C.a-c-d-b D.d-c-b-a

3.The underlined word “criminals” in the fourth paragraph might mean ______________ in Chinese.

A.技术员 B.军人 C.罪犯 D.用户

4.According to the passage, people have NOT yet produced _________ with a 3-D printer.

A.some furniture B.a man-made ear

C.ATM skimmers D.a gun

5.What does the writer think of the 3-D printer?

A.It is necessary only for our work.

B.It is helpful but dangerous.

C.It is too expensive for most people.

D.It is useless in our daily life.

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