高中英语 unit1 reading教案2 牛津译林版选修7

Unit1 Living with technologyReading 2Teaching aims:Students will learn to use some important phrases and key words.Teaching procedures:Step 1 Important phrases The evolution of video and sound devices shortly afterwards contributed to the development of TV was very primitive and had many drawbacks made important breakthroughs in the development of the TV in the late 1920s and early 1930s adopt many of the principles constructed the first colour TV regular colour TV broadcasts were delayed within a short time Satellites allow live TV programmes to be broadcast over vast distances make TV accessible to people who live far away from cities throughout the countryside and the remote areas a small percentage of people benefit from satellite TV broadcast the signals made the first recording of a human voice used round tubes to record on used discs as alternative to tubes be wound up by hand Times sure have changed! employed steel tape to record on paper tape also tore easily by the late 1960s Sound and video goes digital. The first CDs were made available. with the adaptation of digital technology make things of the past keep pace with foresee what the future will bringStep 2 Key words1. contribute (v.) 1) to give money, help, ideas etc to something that a lot of other people are also involved in contribute to/towardsCity employees cannot contribute to political campaigns.contribute sth. to/towards sth.The volunteers contribute their own time to the project.2) to help to make something happen contribute toAlcohol contributes to 100,000 deaths a year in the US.3) to write articles, stories, poems etc for a newspaper or magazinecontribute toone of several authors contributing to the book2. adopt (v.)1) to start to deal with or think about something in a particular wayadopt an approach/policy/attitude etc.The courts were asked to adopt a more flexible approach to young offenders.2) to take someone elses child into your home and legally become its parentThe couple are unable to have children of their own, but hope to adopt a girl. 3. delay (v.)1) to wait until a later time to do somethingHe delayed his decision on whether to call an election.delay doing sth.Big companies often delay paying their bills.delay sth. until sth.The opening of this section of the road is delayed until September.2) to make someone or something lateseriously/badly/slightly etc delayedThe flight was badly delayed because of fog.4. accessible (adj.)1) easy to obtain or useaccessible tothe need for an efficient health service that is accessible to alleasily/readily accessibleComputers should be made readily accessible to teachers and pupils.2) a place, building, or object that is accessible is easy to reach or get into The island is only accessible by boat. There is a church which is easily accessible from my home.3) someone who is accessible is easy to meet and talk to, even if they are very important or powerfulI think that youll find shes very accessible.4) a book, poem, painting etc that is accessible is easy to understand and enjoyHe wants his music to be accessible to everyone.access (n.)1) the right to enter a place, use something, see someone etc access to Access to the papers is restricted to senior management. Cats should always have access to fresh, clean water.2) how easy or difficult it is for people to enter a public building, to reach a place, or talk to someoneaccess to a house with easy access to the sea3) to succeed in entering a place or in seeing someone or somethinggain/get access (to sth.)The police managed to gain access through an upstairs window.access (vt.) to find information, especially on a computerUsers can access their voice mail remotely.5. wind (v.) (wound, wound )1) to turn or twist something several times around something else wind sth. around/round sth.The hair is divided into sections and wound around heated rods. 2) to turn part of a machine around several times, in order to make it move or start working also wind up Did you remember to wind the clock?3) if a road, river etc winds somewhere, it has many smooth bends and is usually very longwind (its way) through/along etc sth.Highway 99 winds its way along the coast.a winding path4) to make a tape move in a machinewind sth. forward/backCan you wind the video back a little wayI want to see that bit again.6. tear (v.)1) to damage something such as paper or cloth by pulling it hard or letting it touch something sharpBe careful not to tear the paper.tear sth. on sth.She realized she had torn her jacket on a nail.tear sth. offTear off the slip at the bottom of this page and send it back to us.tear sth. out (of sth.)He tore a page out of his notebook and handed it to her.2) if paper or cloth tears, it splits and a hole appears, because it has been pulled too hard or has touched something sharpThe paper tears easily.3) to pull something violently from a person or placetear sth. from sb./sth.He tore the letter from my hand.tear sth. off sth.High winds nearly tore the roof off the house.7. be torn1) if you are torn, you are unable to decide what to do because you have different feelings or different things that you want Jess was torn by anger and worry. be torn between She was torn between her love of dancing and her fear of performing in public.2) if a country or group is torn, it is divided because people in it have very different ideas and are arguing or fighting with each other The country was torn by civil war. She spent two months in the war-torn country.Phrasestear sb./sth. to shreds/piecestear apart to cause serious arguments in a group of peopletear at / to pull violently at someone or somethingtear away to make yourself or someone else leave a place when you or they do not want to leavetear down to destroy a building deliberatelytear off to remove your clothes as quickly as you cantear up (1) to tear a piece of paper or cloth into small pieces (2) to remove something from the ground by pulling or pushing it violentlytear up an agreement/a contract etc to say that you no longer accept an agreement or contractExercises:1. Scandal is tearing the government _.2. They threatened to tear _ the peace agreement. 3. The children were screaming and tearing _ each others hair.4. She tore _ his letter and threw it away.5. Trees were torn _ by the storm.6. A lot of the old tower blocks have been torn _ to make way for new housing.7. He was enjoying the fun and couldnt tear himself _.8. We finally managed to tear him _ _ the TV.9. He tore _ his clothes and dived into the water.8. live (adj.)1) a live television or radio programme is seen or heard on television or radio at