Learning about Language课件配套优秀公开课教案设计

Book8 Unit 5 Meeting your ancestors Period 3 Grammar: the Present Perfect Continuous Tense Teaching goals: 1. Target language: Grammar: Present perfect continuous tense.

2. Ability goals: Enable the students to use the present perfect continuous tense. 3. Learning ability goals: Help the students learn how to use the present perfect continuous tense. Teaching important & difficult points: How to use the present perfect continuous tense. Teaching methods: Explanation and practice.

Teaching procedures

Step Ⅰ Revision Check the homework. Let some students read their work. A sample version:

A brief introduction to the Zhoukoudian Caves

Step Ⅱ Lead-in Ask the students to point out the sentences that contain the structure as in “We have been excavating here for many years...”

Sample sentences: 1. We have been finding the bones of tigers and bears in the caves and we think these were their most dangerous enemies.

2. We have been excavating layers of ash almost six meters thick, which suggests that they might have kept the fire burning all winter. 3. Yes, indeed, as the botanical analyses have been specifically showing us, all the fields around here used to be part of a large shallow lake.

Step Ⅲ Explanation Present Perfect Continuous [HAS / HAVE] + [BEEN] + [V+ing] Examples: I have been waiting here for two hours. She has only been studying English for two years.

Use 1 Duration from the Past until Now

Show the following.

Recently, I have been feeling really tired. She has been watching too much television lately. Mary has been feeling a little depressed. Important

Important: Non-Continuous Verbs / Mixed Verbs Show the following.

Sam has been having his car for two years. (Not Correct) Sam has had his car for two years. (Correct) Active / Passive Present Perfect Continuous Examples: Recently, John has been doing the work. (Active)

Recently, work has been being done by John. (Passive) Note: Present Perfect Continuous is rarely used in its passive form.

Step Ⅳ Consolidation Show these exercises on the screen. 1. Hi, Tracy, you look tired. I’m tired. I ____ in the living room all day.

A. painted

B. had painted C. have been painting D. have painted 2. There is so much snow these days, isn’t there?

Yes, it ____ for a few days. A. was snowing

B. has been snowing C. had been snowing D. snowed 3. Although these scientists ____ on the project for nearly four years, I don’t know how long it will last. A. have been working B. had worked C. were working

D. are working 4. Now that she is out of job, Lucy ____ going back to school, but she hasn’t decided yet. A. had considered

B. has been considering

C. considered

D. is going to consider 5. The little boy is dirty from head to foot because he ____in the mud all morning. A. has played

B.

is playing C. has been playing D. was playing Key: 1. C

2. B

3. A

4. B

5.C

Step Ⅴ Practice Ask the students to work in pairs, and take turns to read the statement and turn it into a question using the present perfect continuous tense.

Step Ⅵ Homework Word study exercises are assigned as homework. Students are asked to finish them after class. And ask the students to learn useful words and expressions by heart and practice them. Finish exercises 1 and 2 on pages 40 and 79.