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S: Yes.
T: Really? Ok, let’s check each other. One student try to explain, the other try to guess the word.
S: Have a competition to guess the word.
Step2: Ask and answer
T: Do you still remember the victim in the murder in West Town? Who was he?
S: He was a computer engineer.
T: What else do you know about him? What was the victim last seen doing?
S: He was last seen leaving his office in New Town at about 7 p.m.
T: The victim was attacked with a gun and bled to death as a result. True or False?
S: False.
T: What’s the mistake?
S: He was attacked with a knife.
T: Any more about the victim? ? Try to complete the sentence.
S: The victim was charged with breaking into several computer systems.
T: What was the victim guilty of in the past?
Step3: Complete the sentences(languages points):
1. see sb. doing sth.=be seen doing sth.
1) TS: The victim was last seen leaving his office in New Town at about 7 p.m.
T: You also can say…
S: Someone saw the victim leaving his office in New Town at about 7 p.m.
T: Pay attention to the red words. The structure is…
S: see sb. doing sth. = be seen doing sth.
T: I see a girl doing homework there. You also can say…
S: A girl is seen doing homework there.
T: Work in pairs according to the pictures using see sb. doing sth. or be seen doing sth. You can also use the other verbs like watch, hear, find…
S: Work in pairs
2. see sb. do sth. = be seen to do sth.
T: Just now I saw the girl doing homework there. I often see the girl do homework there. Would you please say it in another way?
S: The girl is often seen to do homework there.
T: So the structure is ….