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First read the following questions.
85.What is the author's main purpose in the passage?
A. To explain a chemical reaction.
B. To recommend a cure for arthritis.
C. To introduce a new product.
D. To compare central heating with the body warmer.
正确答案是
86.In the second paragraph, the word "it" in "To get it going" refers to _____.
A. arthritis
B. muscle sprains
C. the body warmer
D. moisturized wood powder
正确答案是
Now read Text H quickly and select your answers.
Even if the saying "cold hands, warm heart" were really true, the warmhearted probably would prefer to give up frozen fingers during the winter. In Japan, where central heating is still something a luxury, Aoi Co., Ltd. has been distributing a small, disposable hand-and-body warmer that makes use of a harmless chemical reaction in order to generate heat. This winter the Poco body warmer is making its debut in Canada, the United States and parts of Europe. In addition to chasing away winter chills, the body warmer can be used to help relieve pain that results from muscle sprains and arthritis.
The Poco body warmer measures about three by five inches and is one-quarter inch thick. It consists of a cloth bag containing a mixture of iron powder, moisturized wood powder, activated carbon and salt. To get it going, the user simply opens the outer vinyl bag in which the unit is vacuum-packed and shakes the cloth bag. The unit then absorbs oxygen from the air, which in conjunction with the moisture from the wood powder oxidizes the iron, giving off heat. The packet maintains an average temperature of 140 degrees Fahrenheit for 24 hours, according to the manufacturer. Aoi Co. officials say that the product contains no toxic chemicals. The only precaution users need to follow is to avoid direct contact between the skin and the body warmer because burns can occur. The unit sells for about '1.
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