成功之路-Unit8答案.docx

Listening 2: Is It Possible to Be Too Clean? Bacteria Allergy ?Automatically ?Digest Defense Dirt ?Sensible old-fashioned Germs AACCBBA 11. ?Is it poss. to be too clean? A Change in attitudes re: dirt? -past—not worried.? -present—worry a lot abt pers. clean., dirt, germs.? Use sp. soaps, hand sanit., elec. towels, auto. doors B Studies re: germs? -Germany—1980s, 2 grps children,? Grp 1 lived on farms, pets, around other kids: healthier, fewer allergies? Grp 2 lived in city, cleaner, washed hands, 1 bath/day -Australia? Asthma—hard for ppl to breathe? caused by lack of contact w/ norm.bact. as a child.? taking “dirt pills” for bact. missed as babies C –Conclusion? not all bact. bad/causes disease? some good—digest food, compost for gardens? we should be less clean. 12. People today worry too much about dirt, germs, and bacteria. Researchers in Germany and Australia have concluded that contact with bacteria actually makes people healthier. Some bacteria is even helpful or good for us. 13. CBA 14. ?Is it poss. to be too clean? A Change in attitudes re: dirt? -past—not worried.? -present—worry a lot abt pers. clean., dirt, germs.? Use sp. soaps, hand sanit., elec. towels, auto. doors B Studies re: germs? -Germany—1980s, 2 grps children,? Grp 1 lived on farms, pets, around other kids: healthier, fewer allergies? Grp 2 lived in city, cleaner, washed hands, 1 bath/day -Australia? Asthma—hard for ppl to breathe? caused by lack of contact w/ norm.bact. as a child.? taking “dirt pills” for bact. missed as babies C –Conclusion? not all bact. bad/causes disease? some good—digest food, compost for gardens? we should be less clean. 15. People today worry too much about dirt, germs, and bacteria. Researchers in Germany and Australia have concluded that contact with bacteria actually makes people healthier. Some bacteria is even helpful or good for us. 16.对错错错对对 17. CAB 18.CBAACBCA 19. ?/dI’ziz/ 20. ?noun 21. [C, U] 22. an infectious disease; Rats and flies spread disease.; His di