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talk about, be famous for, break out, at the risk of, insist on/upon |
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Mathe matical Induction By Titu Andreescu & Vlad Crisan ISBN: 9780996874595 Price: US $ 84. 63 Buy now at a 20% discount! |
I serve as a very good resource and teaching material for anyone who wants to discover the beauty of induction(归纳法) and its applications. The authors explore 10 different areas of mathematics, including topics that are not usually discussed in an Olympiad-oriented book on the subject. |
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The Flightofa Butterfly or the Pathofa Bullet? By Larry Cuban ISBN: 9781682531372 Price: US $ 32. 00 Buy now at a 10% discount! |
In this book, Larry Cuban looks at the uses and effects of digital technologies in K-12 classrooms, exploring if and how technology has transformed teaching and learning. In particular, he examines forty-one classrooms across six districts in Silicon Valley that have devoted much to including digital technologies into their education practices. |
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The Fight for America's Schools By Barbara Ferman ISBN: 9781 682530962 Price: US $ 60. 00 Buy now at a 15% discount! |
This book examines how parents, communities, teachers, unions, and students are working together to oppose market-based reforms in education. Drawing on a series of rich case studies, the book explains how different groups work together toward common goals. |
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The White Chalk of Days By Mark Andryczyk ISBN: 9781618116611 Price: US $ 27. 05 Buy now at a 10% discount! |
It presents translations of literary works that imaginatively involve important problems in today's Ukraine and express its suffering and happiness. Featuring poetry, fiction, and essays by fifteen Ukrainian writers, the anthology (选集) offers English-language readers a wide collection of the most appealing literature written in Ukraine in the past fifty years. |
POETRY CHALLENGE
Write a poem about how courage, determination, and strength have helped you face challenges in your life.
Prizes
3 Grand Prizes: Trip to Washington, D.C. for each of three winners, a parent and one other person of the winner's choice. Trip includes round-trip air tickets, hotel stay for two nights, and tours of the National Air and Space Museum and the office of National Geographic World.
6 First Prizes: The book Sky Pioneer:A Photobiography of Amelia Earhart signed by author Corinne Szabo and pilot Linda Finch.
50 Honorable Mentions:Judges will choose up to 50 honorable mention winners, who will each receive a T-shirt in memory of Earhart's final flight.
Rules
Follow all rules carefully to prevent disqualification.
■Write a poem using 100 words or fewer. Your poem can be any format, any number of lines.
■Write by hand or type on a single sheet of paper. You may use both the front and back of the paper.
■On the same sheet of paper, write or type your name, address, telephone number, and birth date.
■Mail your entry to us by October 31 this year.
The climate we live in affects many areas of our lives. A warmer world would be a sicker world.
Climate researchers predict that the world climate will become warmer. High temperatures in summer is becoming more frequent and very cold winters more rare. With winters becoming warmer, there are likely to be up to 20, 000 fewer cold-related deaths. However, there is a danger that bacteria would no longer die off seasonally during the cold period.
More heat waves may increase the number of hot-weather related deaths by up to 2, 800. They could cause an extra 5, 000 deaths a year from skin cancer and may cause an increase of up to 2, 000 cases of eye diseases.
Higher average global temperatures mean that diseases, or their carriers, may be able to move to areas that were too cold for them to survive at an earlier time. It's possible that a warm type of malaria (疟疾) will appear in some parts of the world and be a seasonal danger for up to four months each year. They will cause damage to our homes, food, and water supplies and then affect our health.
Those living in poor and developing countries are going to be less able to adapt to changes. Health effects are not likely to be limited to the human population, and wildlife would also be seriously affected.
A. It means that diseases may spread more widely.
B. Therefore, climate changes for the same period.
C. It's no secret that human activity is changing the climate.
D. Climate change is likely to have different effects on the world population.
E. Globally, there are likely to be more floods, more droughts, and more storms.
F. Warmer summers may cause up to 10, 000 extra cases of food poisoning (中毒) each year.
G. The food we eat, the water we drink, and our homes are all dependent upon our climate and weather.
