原版英语RAZ 教案P05-Magnetism (4).pdf

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1、 Learning AZ All rights reserved.www.readinga-Quick CheckLeveLInstructions:Read each question carefully and choose the best answer.Name Date Quick Check continued on following pageP P1.We use magnetism when we.a use a hair dryerb watch televisionc talk on the telephoned all of the above2.Which state

2、ment about magnetism is not true?a Magnetism is an invisible force.b Magnets can make electricity.c The north poles of two magnets will stick together.d The core of the Earth is magnetized.3.What happens when something becomes magnetized?a Its atoms move in the same direction.b Atoms get knocked out

3、 of line.c Electricity is created.d The magnetic force flows out and back into the north pole of the magnet.4.What is a magnetic rock found in nature?a micab lodestonec granited sandstone5.Where does electricity come from?a generatorsb electromagnetsc batteriesd wires6.What was the earliest use of m

4、agnets?a radiosb generatorsc fansd compasses7.Which type of transportation uses electromagnets?a busesb high speed carsc planesd high speed trainsMagnetism Learning AZ All rights reserved.www.readinga-Quick Check(continued)LeveLName Date P PMagnetism8.Which of the following materials is most easily

5、magnetized?a ironb woodc plasticd paper9.If you encode a message,you.a figure out what the message saysb store the message in codec send itd none of the above10.How many magnets could there be on your credit card?a hundredsb severalc millionsd thousands11.Extended Response:Tell the different ways yo

6、u use magnets each day.Learning AZ All rights reserved.www.readinga-Quick Check Answer SheetLeveLP PMain Comprehension Skill:Main Idea and DetailsMagnetism 1.d Main Idea and Details 2.c Fact or Opinion 3.a Vocabulary 4.b Main Idea and Details 5.a Main Idea and Details 6.d Main Idea and Details 7.d Main Idea and Details 8.a Main Idea and Details 9.b Vocabulary 10.c Main Idea and Details 11.Answers will vary but should include the following:magnets are used when you use a credit card,hair dryer,a fan,or blender;watch TV;listen to a stereo;turn on the lights;turn on a computer;and so on.