（2021新外研版）高中英语选择性必修三Unit4 listeningp42&expressionp43 ppt课件（含音频）.zip

Listening P42 and expressions P43 Time travel could result in a paradox an event that contradicts itself. For example, if a person travelled back in time and prevented an event, that event would never have happened; there would therefore be no reason for the person to travel back in time to prevent it. Did You Know? Activity 5 Listen to the conversation and choose its main idea. 1 Time travel is dangerous. 2 Talking to people in the past can change the future. 4 Time travel within your own lifetime should be avoided. 3 Anything you say or do in the past can affect the future. Activity 6 RULE 1 1_ A tourist wants to 2_ _ because 3_. The guide told her 4_. Listen again and complete the table. Dont talk to anybody. tell her 8-year-old self to buy shares in companies that are profitable today she wants to become rich not to do that Activity 6 RULE 2 5_ The guide said that 6_ _. RULE 3 7_ A tourist wants to 8 _. The guide told him not to because 9 _ _. Listen again and complete the table. Be careful not to break anything. breaking something could also cause a paradox and change your path through life Never give anything from our time to someone in the past. give a present to his father anything that doesnt belong to that time might have an impact on someone and cause a paradox Listening materials 1 Listening materials 2 Listening materials 3 Listening materials 4 Listening materials 5 Listening materials 6 Activity 7 Complete the boxes with the expressions from the conversation. Amazing! Wow! I cant wait to. So, what youre saying is that. How about. Imagine how excited. ExpressingExpressing excitementexcitement AskingAsking forfor confirmationconfirmation Thats OK, isnt it? Are you serious? Let me get this straight. You mean that. Itll be exciting enough to. Amazing! Wow! I cant wait to. Imagine how excited. Itll be exciting enough to. So, what youre saying is that. How about. Thats OK, isnt it? Are you serious? Let me get this straight. You mean that. Words & expressions 1. thanks to advances in technology 2. within our lifetimes 3. bank on 指望，依靠 4. any time soon 5. on the horizon = around the corner broaden ones horizons 6. get our hopes up 7. when it comes to sth./doing sth. Words & expressions 8. far ahead of their time 9. be bound to do 肯定会；很有可能会 10. sooner or later 迟早 11. cure n./v. 治愈 12. reckon 认为 13. eliminate 除去，淘汰 14. cell 细胞 15. cycle n.自行车；循环；周期 v. 骑自行车 16. demand 要求 on demand 一经要求 Activity 8 Read the passage and put the expressions in bold into the boxes. ExpressionsExpressions aboutabout timetime ExpressionsExpressions aboutabout expectationexpectation within our lifetimes bank on any time soon on the horizon around the corner far ahead of their time get our hopes up bound to happen Activity 9 Complete the passage with the expressions in Activity 8. Who knows in what exciting ways transport will change 1_? Trains that travel at the speed of todays aeroplanes may sound 2_, but scientists are already developing “hyperloop” trains that travel at over 1,000 km per hour. And although we cant 3_ flying cars being the norm 4_, there are plans to introduce flying taxis that will be stationed on rooftops around busy cities. Many cities already have elevated cycle paths and Im sure that these are 5_ for many others around the world. As well as faster, safer and more comfortable transport being just 6_, we can also 7_ about shorter waiting times, with companies intending to provide on-demand services. within our lifetimes far ahead of their time bank on any time soon bound to happen on the horizon / around the corner get our hopes up Activity 10 Work in pairs. Talk about another aspect of life in the future using the expressions you have learnt in this section. Now think about how effectively your partner used these expressions, and what you could learn from him or her.