原版英语RAZ 教案(R) All About Chocolate.pdf

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1、All About ChocolateA Reading AZ Level R Leveled BookWord Count:1,194Visit www.readinga- for thousands of books and materials.All About Chocolatewww.readinga-LEVELED BOOK RBy Robert CharlesORUAll About ChocolateWritten by Robert CharlesAll About ChocolateLevel R Leveled Book Learning AZWritten by Rob

2、ert CharlesIllustrated by Cende HillMap by Craig FrederickAll rights reserved.www.readinga-Photo Credits:Front cover,back cover,title page,pages 3,4(top left,top right,bottom right),19:ArtToday;page 4(bottom left,center):Artville;page 6:Wolfgang Kaehler/LightRocket/Getty Images;page 7:iS 8:Winfield

3、Parks/National Geographic Stock;page 9:Foodcollection/Getty Images;page 10:Owen Franken/Corbis Documentary/Getty Images;page 11:Leo Ramirez/AFP/Getty Images;page 12:Edward Rozzo/Corbis;page 13(top):iS Broek;page 13(bottom):iS Balderas;pages 18,20:Learning A-Z;page 22:Brand X Pictures;page 23:iS John

4、sonSpecial thanks to Nadia Larsen of Choc-alot in Tucson,Arizona.CorrelationLEVEL RN3030Fountas&PinnellReading RecoveryDRAwww.readinga-All About Chocolate Level R 34Table of ContentsIntroduction.4Where Chocolate Comes From .5Preparing the Beans .8From Beans to Chocolate .12History of Chocolate.16Cho

5、colate Today .20Try This!.22Conclusion .23Glossary .24Index .24IntroductionAsk people about their favorite sweet thing to eat,and theyll probably say its chocolate.People around the world love chocolate.They love it so much that every year they eat more chocolate than any other sweet.All About Choco

6、late Level R 56Today,most cacao trees are grown on farms called plantations.The trees have lots of small white or yellow flowers that bloom during the year.Some of the flowers change into pods,but most do not.Cacao trees grow in the wild,as well as on plantations.Where Chocolate Comes FromIt might s

7、urprise you to learn that chocolate actually grows on trees.That doesnt mean that you can pick a chunk of chocolate from a tree branch and eat it.In fact,the chocolate growing on trees looks,tastes,and smells nothing like the chocolate you eat.The tree that gives us chocolate is the cacao(kah-KOW)tr

8、ee.Chocolate comes from beans that are found in large pods on the tree.Cacao trees grow near the equator,where it is hot and wet.The shaded areas of the map show where cacao trees grow close to the equator,where it is hot.Where Chocolate GrowsAsiaAustraliaAfricaS.AmericaN.AmericaEquatorEuropeAll Abo

9、ut Chocolate Level R 78The pods are shaped like little footballs.The pods are green when they first form,but they change to a golden or reddish color as they get ripe.These pods contain the beans that will be used to make chocolate.Preparing the BeansTaking the pods from the cacao trees is the first

10、 step in making chocolate.But its not the pods that are importantits the 20 to 50 beans found inside the pods,which are actually the trees seeds.It takes a lot of beans and a lot of work to make chocolate.First,the pods are gathered.Then,someone using a large blade called a machete(mah-SHET-ee)cuts

11、the pods open.A harvester cracks open cacao pods to get at the seeds.All About Chocolate Level R 910The beans are then scooped out of the open pod.The beans are not brown,as you might expect.Instead,they are cream colored and covered with a soft pulp.These beans are a long way from being the chocola

12、te you know.This is what the inside of a cacao tree pod looks like.The pulp-covered beans are put into piles or boxes and covered.As the beans come in contact with the air,they begin to change from a cream color to a purple color.The beans also change on the inside in a process called fermentation.F

13、ermentation can take more than a week,but the fermented beans still do not taste or smell like chocolate.A worker spreads the cacao beans so they can dry and then begin the fermentation process.12All About Chocolate Level R 11From Beans to ChocolateMaking chocolate from the fermented,dried beans is

14、a very long and complicated process.First,the beans need to be cleaned,which removes any remaining pulp or pieces of the pods.Then,chocolate makers blend different varieties of beans to make sure the chocolate has just the right flavor.The cleaned and blended beans are roasted in order to bring out

15、the chocolate flavor.This is the stage when the beans begin to smell like chocolate.As the beans are roasted,the thin shell that covers them grows brittle.The beans pass through a special machine that cracks their shells and blows away the pieces of shell with fans.Beans roast in giant drums at a ca

16、ndy factory.After the beans have fermented,they are dried.As they dry,the beans are turned.Once the beans are dry,they are placed in large cloth bags and shipped to makers of chocolate.Workers spread cacao beans to dry in the sun.All About Chocolate Level R 1314After the liquid cocoa butter is remov

17、ed,the solid part of the bar is ground into a powder.Cocoa powder is sent to dairies and bakeries to flavor baked goods and dairy products.The chocolate we eat is made in the final step,called conching(KONCH-ing).Conching takes place in machines with big rollers.Sugar,cocoa powder,cocoa butter,and o

18、ther ingredients are rolled and mixed until smooth.The smooth mixture is poured into molds and cooled.After it has cooled and solidified,the chocolate is removed from the molds and wrapped in packages for shipping.1.Roasting2.ShellingAfter the shells are removed,only the meaty part of the bean,calle

19、d the nib,remains.The nibs are ground up and crushed until they become a liquid.The liquid is poured into molds where it cools into bars of bitter,unsweetened chocolate.The bars are then pressed until the most important part of the chocolate,a yellow liquid called cocoa butter,is removed.The cocoa b

20、utter drains through a screen and is collected to make the chocolate we eat.Word OriginsCacao or Cocoa?When the products of the cacao tree made their way to English-speaking countries,the Spanish word cacao became the English word cocoa.Writers and speakers of English today still use the word cacao

21、when discussing the tree and its flowers,pods,and beans.People usually use the word cocoa when discussing the many products that come from the beans.All About Chocolate Level R 15164.Mixing5.Conching6.Pouring7.Cooling8.Wrapping3.GrindingHistory of ChocolateAs near as historians can tell,people livin

22、g in Mexico and Central America were using chocolate almost 2,000 years ago.These people enjoyed a drink made from chocolate.But if you were to try this drink today,youd find that it tastes much different from the chocolate drinks you enjoy.In fact,it was a very bitter-tasting drinkkind of like coff

23、ee.Christopher Columbus brought some cacao beans back from the New World to show to the king and queen of Spain.But Europeans did not know what to do with the beans,so they mostly ignored them.They were more interested in spices and other things Columbus brought back.All About Chocolate Level R 1718

24、Cortez brought back knowledge of how to make the chocolate drink,but it still was not popular outside the New World.Not until the Spanish began mixing sugar with the drink did chocolate begin spreading in popularity.Until the 1600s and 1700s,chocolate was a luxury food for royalty and powerful churc

25、h officials.But during the 1600s,people began grinding large amounts of cacao beans in mills,producing much more chocolate and lowering the cost.The invention of smooth milk chocolate also increased the treats popularity.The first chocolate shop in London,England,was opened in 1657.In the 1700s,a st

26、eam-driven chocolate grinder was invented,allowing factories to quickly make tons of affordable chocolate.Today,chocolate is a favorite and affordable treat in many countries.Chocolate is enjoyed with gusto by people of all ages.A Spanish explorer by the name of Hernando Cortez helped Europeans begi

27、n to see that there was value in cacao beans.The great Aztec ruler Montezuma had served Cortez a drink made from cacao beans.The Aztecs told Cortez that it was the drink of the gods.They believed that cacao beans gave them added wisdom and strength.They placed so much value on cacao beans that they

28、used the beans as a form of money.Cortez saw much more value in the beans as money than as a drink.He planted cacao trees so that he could use the beans,not for chocolate,but as money.It was his way of growing money on trees.All About Chocolate Level R 19202007165718281847187518941913200716571828184

29、71875189419132009001502152820090015021528 The first use of chocolate by people in Mexico and Central America Chocolate used as money by people of Mexico and Central America Columbus brings cacao beans back to EuropeHernando Cortez brings cacao beans and knowledge of how to make a chocolate drink to

30、SpainA Frenchman opens the first chocolate shop in London,England Cocoa press is inventedFirst solid chocolate bar is soldA man in Switzerland makes and sells the first milk chocolate Milton Hershey establishes Hershey Chocolate Company Invention of a method for making chocolates filled with other s

31、weetsWorld consumes over 3,000,000 metric tons of cacao beansHistory of ChocolateChocolate TodayMost of the chocolate made in factories today is used to make chocolate candy.Other chocolate goes into ice cream,chocolate drinks,and baked goods such as cakes and doughnuts.Even a sauce called mole(MOLE

32、-ay),used in Mexican cooking,is made from chocolate.Some specialty shops sell only chocolate treats.Do You Know?Recent medical studies show that there are definite medical benefits in eating chocolate.The benefits are linked to dark chocolate,rather than milk chocolate.Some of the medical benefits i

33、nclude a reduction in heart disease and blood pressure.All About Chocolate Level R 2122Each year people around the world consume,or eat,tons of chocolate.The people of Switzerland consume more chocolate per person than anyone else in the world.They are joined in their love of chocolate by people in

34、many other European countries.The table below shows chocolate consumption in the top ten chocolate-consuming countries.1 Switzerland.22.4 lbs.10.1 kg 2 Austria.20.1 lbs.9.1 kg 3 Ireland.19.5 lbs.8.8 kg 4 Germany.18.0 lbs.8.2 kg 5 Norway.17.9 lbs.8.1 kg 6 Denmark.17.7 lbs.8.0 kg 7 United Kingdom.17.5

35、 lbs.7.9 kg 8 Belgium.13.2 lbs.6.0 kg 9 Australia.13.0 lbs.5.9 kg10 Sweden.12.9 lbs.5.8 kgTop Chocolate-Consuming Countries on a Per-Person,Per-Year Basis Yummy Chocolate Brownies Make sure you have an adult to help you with any cutting or handling of hot foods.1 Gather these ingredients:1 cup butte

36、r or margarine 4 squares(1oz.each)of unsweetened chocolate(also called bakers chocolate)4 eggs 2 cups white sugar 2 teaspoons vanilla extract 11/2 cups all-purpose flour 1 teaspoon baking powder pinch of salt 2 Preheat the oven to 350F(180C).Rub grease over a 9x13-inch(15-cup)baking pan.3 Melt the b

37、utter in a saucepan over medium heat on the stovetop.After the butter is melted,take it off the heat and stir in the chocolate until it is melted and mixed in.Add the eggs one at a time,stirring thoroughly.Then add the sugar and vanilla,stirring the mixture until smooth.4 In a separate bowl,mix the

38、flour,salt,and baking powder.Gently pour the butter,chocolate,and sugar mix into the flour and stir it until the flour is completely wet.5 Pour the mixture into the baking pan and spread it evenly.6 Bake for 25 to 30 minutes until the brownies begin to pull away from the sides of the pan.7 Let the b

39、rownies cool in the pan before you cut them.Makes 12 brownies.Try This!All About Chocolate Level R 2324ConclusionIt took a long time for chocolate to become popular outside the regions of Central and South America where cacao trees come from.Over the years,people added things such as sugar and milk

40、to the long and complicated process of making chocolate from cacao beans.Today,people around the world eat millions of kilograms of chocolate,making it the worlds most popular sweet.The next time you eat chocolate,think about how it was made.Glossarycacao(n.)the tree from which we get chocolate(p.5)

41、conching(n.)the process of smoothing a chocolate mixture(p.14)consume(v.)to eat or buy(p.21)fermentation(n.)a natural changing process that occurs in many foods and plants(p.10)ingredients(n.)the different food items that go into a dish or recipe(p.14)machete(n.)a long,thick knife(p.8)mills(n.)machines that use animal,wind,or steam power to grind things(p.18)mole(n.)a spicy Mexican sauce made with chile and strong chocolate(p.20)plantations(n.)large farms with many workers(p.6)Indexcocoa,13,19Columbus,Christopher,16,19Cortez,Hernando,17,19fermentation,10plantations,6pulp,9,12