2017-2018学年高中英语创新方案外研版必修1：Unit+5+Section+1讲义+Word版含答案
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Module 5课时达标训练(十七)阅读理解AChemical Change and Physical ChangeThere are two kinds of changes —chemical change and physical change.In a chemical change, there is always a new substance formed. Breaking up water into hydrogen and oxygen is a chemical change. In each of the chemical change at least one new substance is formed. A change is not a chemical change if it doesn't form a new substance.Physical changes are very common, too. There are many examples. You can make a physical change by tearing a piece of paper into two, or by cutting a piece of iron with lathe (机床). Here paper is still paper, and the iron is still iron.Another way of making physical change is dissolving something in water. When you dissolve salt in water, the salt disappears. You may think that a new substance has been formed. But really there is no new substance. The salt is still salt. You can still taste it. So the dissolving of anything is a physical change.When water freezes, the change is also a physical one. The water changes from liquid to solid, but it is still the same substance. That is why the freezing of anything is a physical change.1．The dissolving of salt in water is ________．A．a physical changeB．a chemical changeC．hydrogen and oxygenD．breaking up2．The change of the three states of water is ________．A．a chemical changeB．different substancesC．a physical changeD．the same state3．We can separate a chemical change from a physical one by ________．A．the change of shapeB．the change of colorC．newlyproduced smokeD．newlyformed substances4．If you change water into hydrogen, it is ________．A．a physical changeB．a chemical changeC．a physical and chemical changeD．not a changeBThere are many interesting science experiments out there for young kids. You can wow your friends and teachers with them. All you have to do is to put a little effort into it and you should have no problem coming up with an interesting science experiment. One such experiment is to show your friends and teachers that you can make mothballs (樟脑丸) dance !If you want to do it, first, be sure that you have got all the necessary science kits for your science experiment.What you need for this experiment is a glass filled half full with water. Add a little bit of vinegar (醋) to your glass of water, about 1/3 or 1/4 of a cup (60 ml), and one teaspoon (10 ml) of baking soda, and then carefully stir the mixture. Drop a few mothballs into the glass and have your audience watch. As long as the surfaces of the mothballs become fairly rough, they should begin to bounce up and down in the glass.You can also do a similar experiment with raisins (葡萄干) and clear pop,_such as Sprite. In this experiment, all you have to do is to fill a glass with Sprite and drop a few raisins into it. The raisins should begin to bounce up and down in the glass of Sprite. You can also replace the raisins with mothballs and you should get the same effect in the Sprite. This project works because the irregular surfaces of the mothballs and the raisins hold some CO2 bubbles (气泡), causing them to bounce up and down in a dancing motion.5．The writer wrote this passage to________．A．explain why some science experiments are easyB．encourage people to spend more time on scienceC．tell us how good he is at doing science experimentsD．teach kids how to do an easy and interesting science experiment6．What is the most probable name of the experiment?A．Producing mothballs.B．Dancing mothballs.C．Changing mothballs. D．Swimming mothballs.7．Which of the following things are needed in the experiment?a．baking soda b．water c．mothballsd．salt e．vinegar f．sugarA．bcef B．acdeC．abcd D．abce8．The underlined word “pop”in Paragraph 4 p robably refers to “ ________”．A．a mothball B．a kind of vinegarC．a drink with bubbles D．a special kind of raisinCMonthly Talks at London Canal MuseumOur monthly talks start at 19：30 on the first Thursday of each month except August. Admission is at normal charges and you don't need to book. They end around 21：00.November 7thThe Canal Pioneers, by Chris Lewis. James Brindley is recognized as one of the leading early canal engineers. He was also a major player in training others in the art of canal planning and building. Chris Lewis will explain how Brindley made such a positive contribution to the education of that group of early “civil engineers”.December 5thIce for the Metropolis, by Malcolm Tucker. Well before the arrival of freezers, there was ademand for ice for food preservation and catering, Malcolm will explain the history of importing natural ice and the technology of building ice wells, and how London's ice trade grew.February 6thAn Update on the Cotsword Canals, by Liz Payne. The Smoudwater Canal is moving towards reopening. The Thames and Severn Canal will take a little longer. We will have a report on the present state of play.March 6thEyots and Aits-Thames Islands, by Miranda Vickers. The Thames had many islands. Miranda has undertaken a review of all of them. She will tell us about those of greatest interest.Online bookings：/bookMore into：/w hatsonLondon Canal Museum12－13 New Wharf Road, London NI 9RT www.canalmuseum.mobiTel: 020 77 130 8369．When is the talk on James Brindley?A．February 6th. B．March 6th.C．November 7th. D．December 5th.10．What is the topic of the talk in February?A．The Canal Pioneers.B．Ice for the Metropolis.C．Eyots and Aits-Thames Islands.D．An Update on the Cotsword Canals.11．Who will give the talk on the islands in the Thames?A．Miranda Vickers. B．Malcolm Tucker.C．Chris Lewis. D．Liz Payne.课时达标训练(十七)语篇解读：本文主要讲了两种变化——化学变化和物理变化。
