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3, Discuss the following questions.
1. What signals could the children get from the alien spaceship?
2. What language could the children use to communicate with the aliens?
3. How could the children decode the notes in an unknown language?
4. Compare the pairs of sentences. Explain the difference between them. Answer the questions.
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A. a. The children were trained by Mr Rich Spaceman, b. Mr Rich Spaceman trained the children.
B. a. The notes are made in an unknown language.
b. Somebody makes notes in an unknown language.
C. a. The mystery will be cleared up.
b. The children will clear up the mystery.
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1. Is there any difference in stating the doer of the action? (The doer can be: stated in the sentence, clear from the context or unknown.)
2. What is the time of the action in each pair?
3. What is the form of the verb in each sentence?
(See Grammar Reference, § 2.)
5. Which picture goes with which sentence?
a. Annie loves all cats. f. The policeman helped the man.
b. Annie is loved by all cats. g. The President will be photo-
c. The car hit the tree. graphed by the tourists.
d. The car was hit by the tree. h. The President will photograph
e. The policeman was helped by the man. the tourists.
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