Bài giảng Tiếng Anh 8 - Unit 7: Environmental protection, Lesson 3 - Trường THCS Thái Sơn

 WELCOME 
TO OUR 
CLASS!
 Teacher: . WARM UP Matching
1. I always take a bath a. he will accompany you to 
2. Will you wait here the park
3. I was not at home b. she started working on 
4. As soon as she finished that the next
project, c. until I am ready?
5. After he has finished his d. before I go to bed.
work, e. when he came to see me. ADVERBLook atCLAUSES the sentences OF TIME
1. I always take a bath before I go to bed.
2. Will you wait here until I am ready?
3. I was not at home when he came to see me.
4. As soon as she finished that project, she started working on 
the next
5. After he has finished his work, he will accompany you to the 
park Unit 7: 
ENVIRONMENTAL 
PROTECTION
 Lesson 3: A Closer Look 2 Complex sentences 
with adverb clauses of 
time
 – A complex sentence contains one independent 
 clause and at least one dependent clause.
 Example:
 The roads were slippery when it rained.
 independent clause dependent clause
 – An adverb clause is a dependent clause.
 – An adverb clause of time shows when something 
 happens. It is usually introduced by time 
 connectors: before, after, when, while, till / until, as 
 soon as,  1. Read the sentences and write I.C if the underlined clause 
is an independent clause or D.C if it is a dependent clause
 Example:
 You must be careful when you cross the street. D.C
 1. I’ll wait for you here until you get back. I.C
 2. Make sure you lock the door when you go out. D.C
 3. You must get a permit before you build a campfire at a I.C
 national park.
 D.C
 4. Don’t use too much water while you are having a shower.
 5. As soon as my friends come, we will pick up rubbish on D.C
 the beach. 2. Choose A, B, or C to complete each sentence.
 1. I was not at home ______ he came to see me yesterday.
 A. when B. until C. as soon as
 2. We called the forest guard unit ______ we saw the bush fire.
 A. as soon as B. while C. until
 3. I went straight to the gym ______ I left home.
 A. while B. before C. after
 4. You can stay with us ______ you find a suitable place to stay.
 A. as soon as B. before C. until
 5. We cleaned up everything at the campsite ______ we left.
 A. until B. before C. while We have captured Hugo’s family. 
I am waiting for Hugo to come 
and I’ll capture him too. [Ha..ha]
 Hugo, you need to answer 
 PLAYcorrect the questions to save 
 your wife and son. 1. I was not at home ______ he came 
to see me yesterday.
A. when 
B. until
C. as soon as
 NEXT
 A B C BACK BACK 2. We called the forest guard unit 
______ we saw the bush fire.
A. as soon as
B. while 
C. until
 NEXT
 A B C BACK BACK 3. I went straight to the gym ______ I 
left home.
 A. while
 B. before
 C. after
 NEXT
 A B C BACK BACK 4. You can stay with us ______ you 
find a suitable place to stay.
 A. as soon as
 B. before
 C. until
 NEXT
 A B C BACK