資源簡介

(共21張PPT)
Unit 6
Nurturing
nature
Using language
Present perfect continuous
BY MICHELLE
Activity 1
Look at the sentences from the reading passage and answer the questions.
1. Which of these statements are true about sentence (a)
(1) Wild animals started using these passages in the past.
(2) Wild animals used these passages only once.
(3) Wild animals still use these passages now.
2. What is the difference between the expressions in bold in sentences (a) and (b)
They are different in form and meaning. For sentence (a) the form is “have been doing” , while for sentence (b) the form is “have done”. In meaning, the bold part in sentence (a) means the action is continuous from the past; while the bold part in sentence (b) means the action happened once in the past.
1.The train has been racing along steadily since it left Xining.
2.All this time, the song “Sky Railway” has been playing inside my head.
3.The journey has been flying by, ...
4.The Qinghai-Tibet Plateau has been attracting people’s admiration for centuries.
5. ... passengers from all over the country have been enjoying these magical landscapes.
Now look for more sentences with the present perfect continuous tense in the reading passage, and summarise its use in your own words.
Grammar: Present perfect continuous
現在完成進行時表示動作從過去某一時間開始一直持續到現在，這個動作可能終止，也可能還在進行。
1. 現在完成進行時的概念
2. 現在完成時的形式
have / has been doing
Grammar: Present perfect continuous
3. 現在完成時和現在完成進行時的區別
1）在不用時間狀語的情況下，現在完成進行時的動作不一定已經完成，很可能持續下去， 而現在完成時一般表示動作已經完成。即現在完成進行時強調動作的延續性，而現在完成時強調動作的結果。
a. I have been designing solar racing cars.
我一直在設計太陽能賽車。
b. I have designed five or six different cars.
我已經設計五六輛小汽車了。
Grammar: Present perfect continuous
3. 現在完成時和現在完成進行時的區別
2）現在完成進行時往往表示動作在重復，而現在完成時一般不表示動作的重復。
a. I have been taking part in races for four years.
我這四年一直在參加比賽。
b. How many races have you taken part in
你參加多少場比賽了？
Grammar: Present perfect continuous
3. 現在完成時和現在完成進行時的區別
3）現在完成進行時與所有進行時態一樣帶有感彩，可使表達顯得生動，而現在完成時往往只表明一個事實、一種影響或結果，不帶感彩。
What have you been doing You looked fed up.
你一直在干什么呀？你看上去很不高興。
Grammar: Present perfect continuous
4. 常與現在完成進行時連用的時間狀語
現在完成進行時常與表示一段時間的狀語連用，例如：all the time, this week, all night, these few days, for … , since … 等。
a. A private detective has been tailing him for several weeks.
一個私人偵探幾個星期以來一直在跟蹤他。
b. Craig loves outdoor activities — he skis in winter and has been fishing and
hunting since he was a child.
Craig 熱愛戶外活動。冬天他去滑雪，他從小就開始釣魚和打獵。
Activity 2
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
Activity 3
Look at the charts and make sentences using the present perfect continuous tense.
1. The number of trees has been increasing in the last 20 years.
2. Desert areas have been reducing in the last 20 years.
3. Butterfly population has been increasing / has becoming larger and larger in the last 20 years.
Activity 4
Work in pairs. Talk about how the environment where you live has changed.
Use the present perfect continuous tense where appropriate.
Tourism and the environment
Did You Know
Ecotourism is a type of tourism that conserves the environment. It encourages people to be responsible travellers and involves educating them about the natural world. For countries such as Costa Rica , Kenya and Nepal, ecotourism is an important part of the economy. Some ecotourism holidays involve voluntary work, such as planting trees or counting endangered animals.
Activity 5
Listen to the conversation and choose the places mentioned.
a. Australia
d. South Africa
b. Nepal
c. Thailand
Activity 6
Listen again and complete the notes.
hike in the mountains
count
hard work
elephants
lie on the beach
a nice hotel
a one-day bike tour
Activity 7
Complete the boxes with the expressions from the conversation.
Persuading others
Compromising
The fact is that…
Wouldn’t you agree that…
I agree, but…
As a compromise, …
Let’s find a compromise.
Let’s meet in the middle.
Activity 8
Complete the passage with the expressions in the box.
1. create opportunities for new businesses
2. help the local economy
3. not eco-friendly
4. disturb the wildlife
5. provide more jobs
6. use up natural resources
7. higher carbon emissions
Activity 9
Complete the boxes with the expressions in Activity 8.
Advantages
Disadvantages
1.attract more tourists
2.create opportunities for new businesses
3.help the local economy
4.provide more jobs
5.raise awareness of local wildlife
6.provide locals with a chance to experience other cultures
1.not eco-friendly
2.disturb the wildlife
3.use up natural resources
4.higher carbon emissions
5.pollute inshore seawater
6.destroy local ecological environment
Now think about more advantages and disadvantages of building the hotel at White Beach.
Activity 10
Work in pairs. Role-play a discussion to reach an agreement that is satisfactory for everyone. Use the expressions in this section.
Now think about how well you approached the problem from different perspectives and reached an agreement.
Student A: You are a hotel operator who wants to build a hotel on some forested land.
Student B: You are a conservationist who wants to protect the wildlife there.
Summarize the usage of Present perfect continuous and do the relevant exercises.
Think about other situation where both sides want to reach an agreement and have a similar conversation.
THANKS FOR WATCHING

展開更多......

收起↑