外研版(2019)选择性必修 第一册Unit 6 Nurturing nature Using language精品课件(15张ppt)

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名称 外研版(2019)选择性必修 第一册Unit 6 Nurturing nature Using language精品课件(15张ppt)
格式 pptx
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资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2023-03-02 20:56:22

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(共15张PPT)
Unit 6
Using language
Grammar:
present perfect continuous
TB P65 Activity 1
have done
动作已完成
have been doing
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
1.构成
have/has+been+doing
2.用法
(1)表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。
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结束。
Eg. Sorry! I'm 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的动作。
Eg. The teacher has been telling us to be careful all the term.
(4)表达较重的感彩。
Eg. You have been daydreaming but never make an effort.
现在完成进行时
3.时间标志
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。另外,如果表示某一动作的起点,可用since引导的短语或从句,如果表示某一动作的全部时间,可用for引导的短语。
He has been hoping for a raise in salary all the time.
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 brackets
have been hearing
has been making
is moving
have been flying
have been given
have been using
Activity3 look at the charts and make sentences using the present perfect continuous tense
The number of trees
_____________________
in the last 20 years.
has been increasing
Activity3 look at the charts and make sentences using the present perfect continuous tense
Desert areas
_____________________
in the last 20 years.
have been reducing
Activity3 look at the charts and make sentences using the present perfect continuous tense
Butterfly population
_____________________
_____________________
has been increasing
in the last 20 years.
Notes:
37. roar 吼叫;咆哮;轰鸣
38. brush off 擦掉,刷掉
39. bat away 击打,甩掉
40. put off (the headset) 摘掉/脱掉(头盔)
推迟,延期
41. ecotourism 生态旅游 – tourism – tourist
42. conserve 保存;保护 ≈ protect
conservation – conservational – conservationist
43. involve 包含,使卷入,使忙于
44. economy 经济 – economic 经济学的;有利可图的
economical 节约的,节俭的
45. count 计算;数 46. option 选择权,可选物
47. hike 徒步旅行 promise 妥协 49. jungle 丛林
Tourism and the environment
P66
Did you know
Activity 6 Listen again and complete the notes
Activity 8 Complete the passage with the expressions in the box.