Security for Wireless Sensor Networks Using Identity-based Cryptography

Peppa and her friends are going on a school bus trip. What adventures will they have when they visit the mountains? For over thirty-five years, the best-selling Read it yourself with Ladybird has help

Madame Gazelle is having a jumble sale to raise money for a new school roof. What does Daddy Pig buy? For over thirty-five years, the best-selling Read it yourself with Ladybird has helped children le

Peppa and her family are visiting the funfair. Find out who gets scared on the rides and who wins lots of prizes. Read it yourself with Ladybird is one of Ladybird's best-selling reading series. For o

An Angry Birds story. The Pigs think they have found an easy way to steal some eggs, but sweet-looking Stella has a surprise for them... Read it yourself with Ladybird is one of Ladybird's best-sellin

Written to include many words that are vital for learning to read, as well as a limited number of story words that are introduced and practised throughout, this book features simple sentences and freq

An Angry Birds story. The Pigs think they have found an easy way to steal some eggs, but sweet-looking Stella has a surprise for them... Read it yourself with Ladybird is one of Ladybird's best-sellin

How many ears do animals have? What can animals do with a tail? Find out about animals and their bodies in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners of English. Covering a variety of topics, Do You Know? adopts an enquiry-based approach, and includes motivating video content, project work and critical thinking activities to develop students' linguistic and twenty-first century skills.Recommended for children aged 7+, there are four levels progressing from CEFR level Pre-A1 to level A2. Each reader is accompanied by online video content, audio, video and comprehension activities, and suggestions for project work. Animals and Their Bodies, a Level 1 Reader, is Pre-A1 in the CEFR framework and supports YLE Starters exams.Short sentences contain a maximum of two clauses, using the present tense and some simple adjectives.

Based on the new Peter Rabbit animated TV series. Peter and Lily need to escape Mr Tod, but will they pass the squirrel test to be allowed up in the trees? For over thirty-five years, the best-selling

Based on the new Peter Rabbit animated TV series. Peter and Benjamin find some radishes one day, but then they start losing them! Is there a radish robber about? For over thirty-five years, the best-s

Once, the Sky God had all of the stories in the world. Find out how Anansi got the stories for everyone to share. Based on the well-loved Caribbean folk tale. Read it yourself with Ladybird is one of

Based on the classic fairy tale. A poor shoemaker finds that someone is making beautiful shoes for him - two little elves! However can he repay them for his change in fortune? Read it yourself with L

Based on the classic fairy tale. Kind-hearted Beauty has to go and live with a beast, but she soon realizes that behind the ugly exterior lies a person she can care for. Read it yourself with Ladybird

Based on the classic fairy tale. While the three bears are out for a walk, naughty little Goldilocks comes calling and tries out their porridge, chairs and beds to see which are just right. But then t

Why is the ocean important? Why do people study it? Find out about protecting the ocean and its plants and animals in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners of English. Covering a variety of topics, Do You Know? adopts an enquiry-based approach, and includes motivating video content, project work and critical thinking activities to develop students' linguistic and twenty-first century skills.Recommended for children aged 7+, there are four levels progressing from CEFR level Pre-A1 to level A2. Each reader is accompanied by online video content, audio, video and comprehension activities, and suggestions for project work. Protecting the Ocean, a Level 4 Reader, is A2 in the CEFR framework and supports YLE Flyers exams.The longer text is made up of sentences with up to three clauses, more complex past and future tense structures, modal verbs and a wider variety of conjunctions.

Based on the classic fairy tale. A prince wants to marry a real princess, so the queen devises a true test based on one pea and a lot of mattresses! Read it yourself with Ladybird is one of Ladybird's

Based on the classic story by Lewis Carroll. Alice is feeling bored when she finds herself following a large white rabbit down a rabbit hole. Then things get even stranger... Read it yourself with Lad

Mowgli the man cub is growing up in the jungle. He has many exciting adventures with his animal friends Baloo the bear and Bagheera the panther. Based on the classic story by Rudyard Kipling. Read it

Aladdin is a poor boy who lives with his mother. What happens when he meets a magician and finds a magical lamp? Based on the traditional Arabian folk tale. Read it yourself with Ladybird is one of La

Based on the classic story by Lewis Carroll. Alice is feeling bored when she finds herself following a large white rabbit down a rabbit hole. Then things get even stranger... Read it yourself with Lad

Based on the classic fairy tale. A little girl is given a magic porridge pot, but one day when her mother forgets to stop it cooking, the whole town is soon filled with porridge! Read it yourself with

Based on the classic fairy tale. The three billy goats Gruff want to cross the bridge to reach the grass on the other side, but first they have to get past the hungry troll! Read it yourself with Lady

Based on the classic fairy tale. The vain emperor has some beautiful new clothes made that only clever people can see - or can they? Read it yourself with Ladybird is one of Ladybird's best-selling se

Based on the classic fairy tale. When an old man plants some turnip seeds, one of the turnips grows ENORMOUS! How will he ever get it out of the ground? Read it yourself with Ladybird is one of Ladybi

Based on the classic fairy tale. Town Mouse and Country Mouse lead very different lives and when they visit each other they find everything very strange! Read it yourself with Ladybird is one of Ladyb

Based on the classic fairy tale. When Hansel and Gretel get left in the woods, they are captured by a witch who lives in a house made from gingerbread and sweets. How will they ever escape? Read it y

Based on the classic fairy tale. The ugly duckling doesn't fit in and is chased away by everyone he meets. Will he ever find some true friends? Read it yourself with Ladybird is one of Ladybird's best

Based on the classic fairy tale. Cinderella's dream of going to the prince's ball comes true when her fairy godmother appears. But she'd better be home by midnight... Read it yourself with Ladybird is

Based on the classic fairy tale. Little Red Hen wants help planting and cutting the wheat, grinding the flour and making the bread, but the cat, the rat and the dog refuse to join in - until the bread

Based on the classic story by Johanna Spyri. Heidi loves living in the mountains with her grandfather and her friend Peter, and is homesick when she moves to Frankfurt. Will she make it back to her be

Based on the classic tale by Beatrix Potter. Naughty little Peter Rabbit goes into Mr MacGregor's garden to eat his radishes, but then the farmer spots him! How will Peter Rabbit get away? Read it you

產品介紹How do birds fly? How do jet engines move a plane? Find out more about helicopters, gliders and the science of flying.In the Air, a Level 2 Reader, is A1 in the CEFR framework and supports YLE Movers exams. Short sentences contain a maximum of two clauses, introducing the past tense and some simple adverbs.系列介紹跟著 BBC Earth一起探索動物與大自然的神秘世界▌讀本融入探究式教學概念（ inquiry-based approach ），每一跨頁均透過「主題問句」先引導孩子主動思考，再輔以實例、多元活動增進學習深度與廣度。▌全系列共四級（L1-4），每級九本。每本清楚標示Lexile級數及Word count。▌每本除提供non-fiction文本外，亦有圖解單字、互動式延伸活動（Find Out, Think, Watch, Project, Look）及讀後小考。▌每級數句構與時態運用及詞彙表達皆參考Cambridge YLE題型，讓孩子從閱讀中學習主題知識，同步培養必備語言、溝通力及探究力。

What is a jungle? Find out about jungle plants and animals in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners o

Do all birds fly? What do insects eat? Find out about birds and insects in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for you

It is washing day for Bear. Masha is dirty-again and again! Bear washes Masha's clothes-again and again. Bear is tired!Ladybird Readers is a graded reading series of traditional tales, popular charact

"I want to go on a trip," said Moomin. Moomin, Snorkmaiden, Moominmamma, Moominpappa and Little My look for treasure. Ladybird Readers is a graded reading series of traditional tales, popular charac

How does color help animals? Can you see the animals in their homes? Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for

One day, Moomin sees something in the water. It is small and white. It is a beautiful star! Moomin can make a wish. What does he ask for? Ladybird Readers is a graded reading series of traditional tal

Learn to say "Good morning" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a

Learn where things are with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a fore

Learn to say "Thank you" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a fo