Read the passage and do the task that follows. Do dogs have a sixth sense? Yes , but perhaps not in the way that is generally assumed. There is nothing supernatural in the sensitivities of dogs. They can all be explained by biological machanisms. For instance, dogs can find their way home from long distance. This ability seems to be based on the detection of subtle difference and changes in the earth's magnetic field. Dogs are also capable of predicting thunderstorm. When a storm is imminent, they may become intensely alarmed and begin trembling as if in pain. This sensitivity is a response to changes in barometric pressure. It may seem to be meaningless behaviour today, but in the dog's wild ancestry it made good sense to become worried by these climatic signals. One of the most amazing claims for dogs' sixth sense was made recently by researchers who reported that they had discovered infrared detectors in dogs' noses. This could explain certain abilities previously thought to be supernatural. St. Bernard dogs, for example , are said to be able to tell whether a climber buried in an avalanche is still alive, simply by sniffing the snow. We know that sensitive heat detector exists in the snouts of certain snakes, and this strengthens the case for their existence in dogs. We are still learning how dogs achieve such remarkable feats as have been recorded time and again. 1. According to the passage, the sixth sense in dogs is ________. A. supernatural B. generally assumed supernatural C. never explained by biological mechanism D. appreciated by human 2.It's the detection of subtle differences and changes in the earth's magnetic field that ________. A. gives dogs a good sense of direction B. helps dogs predict changes in weather C. make dogs sensitive to human D. enables dogs to predict thunderstorms 3.Dogs may become intensely alarmed and begin trembling when ________. A. they are beaten B. they cannot find their way home C. a storm is going to happen D. they are in pain 4.What helps a dog know whether a buried person is alive or not? A. The changes in the earth's magnetic field B. The changes in barometric pressure C. The supernatural sensitivity of the dog D. The infrared heat sensors on the dog's snout 5.Which of the following statements the author would probably agree with? A. The behaviour of some dogs during thunderstorm indicates that they are afraid of drowning. B. Scientist will be able to discover how dogs' senses work. C. Dogs have more kinds of perceptions than people because they need them. D. The presence of heat detectors in dogs proves that dogs are supernatural. làm ơn khi chọn đáp án hãy giải thích nguyên nhân chọn giùm ạ! ko giải thích = báo cáo -----Thanks! trả lời nhanh nhất 5sao, and CTLHN