Learning about Language教案设计

Unit 5 Meeting your ancestors The Third Period Learning about Language

Teaching goals 教学目标

1. Target language目标语言

Grammar: Present perfect continuous tense.

2. Ability goals 能力目标

Enable the students to use the present perfect continuous tense. 3. Learning ability goals 学能目标

Help the students learn how to use the present perfect continuous tense. Teaching important & difficult points 教学重难点

How to use the present perfect continuous tense. Step I 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 II 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. Show the following.

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.

StepIII Consolidation 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 C. were working

B. had worked 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

C. considered

B. has been considering

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 IV Practice Exercise Book Step V

Homework Finish exercises 1 and 2 on pages 40 and 79.