1、Unit 6Using languageGrammar：present perfect continuousTB P65 TB P65 Activity 1have done动作已完成动作已完成have been doing动作一直持续动作一直持续Thanks to our efforts,passengers from all over the country have been enjoying these magical landscapes现在完成进行时现在完成进行时1 1构成构成have/hasbeendoing2 2用法用法(1)(1)表示过去某一时刻发生的动作一直持续到现在，并表
2、示过去某一时刻发生的动作一直持续到现在，并有可能继续持续下去。有可能继续持续下去。Eg.He has been playing computer games all day.Eg.I have been working for this company for three years.(2)表示某一动作从过去开始，一直持续到说话时刚刚表示某一动作从过去开始，一直持续到说话时刚刚结束。结束。Eg.Sorry!Im late.How long have you been waiting for me?(3)表示一直到说话时为止的一段时间内一再重复发生表示一直到说话时为止的一段时间内一再重复发生的动
3、作。的动作。Eg.The teacher has been telling us to be careful all the term.(4)表达较重的感情色彩。表达较重的感情色彩。Eg.You have been daydreaming but never make an effort.现在完成进行时现在完成进行时3时间标志时间标志现在完成进行时常与现在完成进行时常与all the time,all the morning,these few days,all night等表示一段时间的状语连用等表示一段时间的状语连用。另外，。另外，如果表示某一动作的起点，可用如果表示某一动作的起点，可用s
4、ince引导的短语或从引导的短语或从句，如果表示某一动作的全部时间，可用句，如果表示某一动作的全部时间，可用for引导的短引导的短语。语。He has been hoping for a raise in salary all the time.他一直盼着加薪。他一直盼着加薪。They have been quarreling since two days ago.Activity2 complete the passage with the correct form of the verbs in brackets1.have been hearing2.has been making3.i
5、s moving4.have been flying5.have been given6.have been usingActivity3 look at the charts and make sentences using the present perfect continuous tenseThe number of trees _in the last 20 years.has been increasingActivity3 look at the charts and make sentences using the present perfect continuous tens
6、eDesert areas _in the last 20 years.have been reducingActivity3 look at the charts and make sentences using the present perfect continuous tenseButterfly population _has been increasingin the last 20 years.Notes:37.roar 吼叫；咆哮；轰鸣吼叫；咆哮；轰鸣38.brush off 擦掉，刷掉擦掉，刷掉39.bat away 击打，甩掉击打，甩掉40.put off(the head
7、set)摘掉摘掉/脱掉（头盔）脱掉（头盔）推迟，延期推迟，延期41.ecotourism 生态旅游生态旅游 tourism tourist 42.conserve 保存；保护保存；保护 protect conservation conservational conservationist 43.involve 包含，使卷入，使忙于包含，使卷入，使忙于44.economy 经济经济 economic 经济学的；有利可图的经济学的；有利可图的 economical 节约的，节俭的节约的，节俭的45.count 计算；数计算；数 46.option 选择权，可选物选择权，可选物47.hike 徒步旅行徒步旅行 promise 妥协妥协 49.jungle 丛林丛林Tourism and the environmentTourism and the environmentP66 P66 Did you know?Did you know?Activity 6 Listen again and complete the notesActivity 8 Complete the passage with the expressions in the box.
