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29.Why are the numbers used in Paragraph 2?A.To show the importance of the dialects.B.To conclude the diversity of the dialects.C.To explain different ways to protect dialects.D.To illustrate the tendency of fast dying dialects.30.What can we infer from Paragraph 3?A.Seke is a place in the mountains of Nepal.B.People assume fewer dialects exist in big cities.C.Nepal and New York were twin cities many years ago.D.ELA is not surprised to trace an original Nepal dialect to Brooklyn.31.What does Ken Hale's quote mean?A.The extinction of a dialect is a great loss.B.Bombing Louver is a disaster to any language.C.Ancient ways of living are kept secret in Louvre.D.Languages are to survive simply by honoring them.DHave you ever worried that you might smell bad?Well,you do have a smell,but not in theway you think.The human body releases hundreds of chemical compounds into the air everyday,and these compounds reveal much more than just our health habits;they can also indicateour health situations.In 1971,chemist Linus Pauling identified 250 different gaseous chemicals in our breath,known as VOCs..These VOCs originate from the body's metabolic(新陈代谢)processes andare excreted (through skin glands.While sweat contributes to these VOCs,it onlyaccounts for a small portion of them.VOCs can reveal a lot about our health.For example,a sweet-smelling breath could be asign of diabetes.Besides breath,VOCs are also released from our skin,and feces ()Anotable case involved Joy Milne,who noticed a change in her husband's scent 12 years beforehe was diagnosed with Parkinson's disease.Known as"the woman who can smell Parkinson's,"Joy has been using her keen sense of smell to help scientists develop a simple swab test todiagnose the illnesses.Animals with advanced sense of smell,like dogs,have demonstrated they can detectvarious types of cancer in humans.Although these scents are often undetectable to the humannose,they provide evidence that our bodies emit different scents when something is wrong.The relationship between VOCs,and our health is still being studied.Studies have already shownthat they can predict a person's age within a few years based on their skin VOC profile.In oneinterview,Professor Morin stated,"We are at a relatively early stage in this research area,butwe have already distinguished males from females based on the acidity of skin VOCs.Webelieve skin VOCs can reveal aspects of who we are,such as nutrition,health and stress.Thesesignatures likely contain markers that can be used to diagnose disease."So,who knows-maybe one day we will be able to detect diseases simply by breathinginto a device.32.What do we learn about the VOCs according to the text?A.The VOCs are primarily composed of sweat.B.Skin VOCs reveal more about our health habits.C.Our body's metabolic processes are the source of VOCs.D.VOCs only released from our skin indicate health status.高三年级英语学科试题第5页共8页