A
Basic Study Manual　Hardcover：$37.50
Future success depends on the ability to learn.Here are the answers to the questions most often asked by parents，teachers，business trainers and by students themselves.Read this book and learn：
●What the three barriers to study are and what to do about them
●What to do if you get tired of the subject you are studying
●Twenty­six simple drills to help you learn how to study easily，rapidly and with full understanding
Buy and read Basic Study Manual and use it to dramatically improve your ability to study.
Study Skills for Life　Hardcover：$31.99
L．Ron Hubbard’s study technology for teenagers opens the door to their future success by giving them the ability to study and learn，fully illustrated for easy comprehension.
Learning How to Learn　Hardcover: $24.99
The basics of effective study for 8­to 12­year­olds is fully illustrated.Children who read and apply the materials in this book regain their liking for study and their ability to apply this knowledge to life.Get this book for a child you want to see wins at his studies!
How to Use a Dictionary: Picture Book for Children Hardcover: $34.90
In spite of millions of dollars spent on “educational research”，children are not taught the most basic skills of learning even the most basic of these：how to use a dictionary.In fact，a search of educational books for children found no book that told them how to use a dictionary or that one should.Written for children from 8 to 12 years old，this fully illustrated book will teach your children：
●How to find words in a dictionary
●The different ways that words are used
●What the different marks and symbols that are used in a dictionary mean
●How to use a dictionary to correctly pronounce words
It includes a section for parents and teachers showing you how to use this book with children.Buy this book and give it to your children to unlock their education.What’s more，you’ll just pay 50% for it before May 1，2016.
【解题导语】　本文是一篇广告，主要向读者推荐了四本书。
1．Some information of the four books was illustrated in order to________．xposed
A．reduce the cost of them
B．appeal to readers of all ages
C．help readers understand them
D．make them suitable for different readers
解析：选C。推理判断题。本文是一篇关于四本书的推荐广告，对这四本书的介绍，有助于读者对它们有所了解，从而有选择性地购买，故选C项。
2．What do the four books have in common?
A．They are all for 8­to 12­year­olds.
B．They are all written by L．Ron Hubbard.
C．They are all study books.
D．They are all based on educational research.
解析：选C。推理判断题。根据这四本书的书名以及相关介绍可推知，这四本书都是与学习有关的，故选C项。
3．If you buy the four books on April 1，2016，you will have to pay________ for them.
A．$129.38            B．$64.69
C．$34.90      D．$111.93
解析：选D。细节理解题。根据每本书的价格和文章的最后一段可知，前三本书是原价，而第四本书在2016年5月1号前购买是半价，那么四本的总价应该是：$37.50＋$31.99＋$24.99＋$34.90×50%＝$111.93，故选D项。
4．The purpose of the passage is to ________．
A．introduce the four books to readers
B．help children to learn English
C．sell the four books to students
D．enrich students’ knowledge about nature
解析：选A。推理判断题。根据文章的整体内容可推知，本文是一篇关于四本书的推荐广告，目的是给读者推荐几本书，故选A项。
B
We tend to think of plants as the furniture of the natural world.They don’t move，they don’t make sounds and they don’t seem to respond to anything—at least not very quickly.But as is often the case，our human’s view of the world misses quite a lot.Plants talk to each other all the time.And the language is chemical.
Over the years，scientists have reported that different types of plants，from trees to tomatoes，release compounds(化合物) into the air to help neighboring plants.These chemical warnings all have the same purpose — to spread information about one plant’s disease or infestation so other plants can defend themselves.But exactly how plants receive and act on many of these signals is still mysterious.
In this week’s Proceedings of the National Academy of Sciences，researchers in Japan off
ered some explanations.They had identified one chemical message and traced it all the way from release to action.
The scientists looked at tomato plants infested by a common pest，the cutworm.The researchers studied leaves from exposed and unexposed plants.They found one compound showed up more often in the exposed plants.The substance is called HexVic.When the scientists fed HexVic to cutworms，it knocked down their survival rate by 17%.The scientists identified the source of HexVic，and sprayed it lightly over healthy plants.Those plants were then able to start producing the cutworm­killing HexVic.Researchers confirmed that uninfected plants have to build their own weapons to fight off bugs and disease.How do they know when to play defense? They are warned first by their friendly plant neighbors.

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