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When the lizard moved, it started the siren. I guessed that the alarm had been made in Europe, where there are no house lizards.
Well, I won’t finish this story but if you want an alarm system free of charge, let me know. I’ll send you ours. We bought a dog this morning. It knows the difference between a lizard and a burglar.
42.The writer bought an alarm system to______ .
A.make sure that he got up early every day
B.warn him when there were lizards in his house
C.frighten burglars and tell him that somebody had got into the house
D.make Mary feel safe to live in the large room
43.The writer used numbers 4,9,1 to ______.
A.set the alarm system
B.make a telephone call
C.give numbers to each of the three units in the downstairs rooms
D.name his alarm system
44.The purpose of the three units was to .
A.send a message to the control unit and start the siren
B.sound their own sirens when the control unit told them to
C.check that the control unit worked properly all the time
D.give them enough light
45.If the writer set the alarm and remained in the room for more than half a minute, ______.
A.nothing would happen
B.the control unit would not work
C.the siren would make a noise
D.the dog would bark
46.The purpose of the writer in writing the passage is to______.
A.tell us that the alarm system doesn’t work
B.tell us an interesting experience
C.show us how the alarm system works
D.make it clear that he wants to give away his alarm system
D
The professor says “It’s true, my personal feeling is that children should stay in one school. Our findings are based on research and not on any personal feelings that I or many assistants may have on the subject.”
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