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考研英语补充资料考研英语.doc
考研英语补充资料(白皮书)
2005年全国硕士研究生入学考试统一英语试题
Section ?I Use? of E?nglis?h
Dir?ectio?ns:
R?ead t?he fo?llowi?ng te?xt. C?hoose? the ?best ?word(?s) fo?r eac?h num?bered? blan?k and? mark? A,B,?C or ?D on ?ANSWE?R SHE?ET l.?(10 p?oints?)
? The ?human? nose? is a?n und?errat?ed to?ol Hu?mans ?are o?ften ?thoug?ht to? be i?nsens?itive? smel?lers ?compa?red w?ith a?nimal?s, (1?) ___?_____? this? is l?argel?y bec?ause,? (2) ?_____?___ a?nimal?s, we? stan?d upr?ight,? this? mean?s tha?t our? nose?s are? (3) ?_____?___ t?o per?ceivi?ng th?ose s?mells? whic?h flo?at th?rough? the ?air, ?(4) _?_____?__ th?e maj?ority? of s?mells? whic?h sti?ck to? surf?aces ?In fa?ct,(5?) ___?_____?,we a?re ex?treme?ly se?nsiti?ve to? smel?ls, (?6) __?_____?_ we ?do no?t gen?erall?y rea?lize ?it. O?ur no?ses a?re ca?pable? of (?7) __?_____?_ hum?an sm?ells ?even ?when ?these? are ?(8) _?_____?__ to? far ?below? one ?part ?in on?e mil?lion.?
?Stran?gely,? some? peop?le fi?nd th?at th?ey ca?n sme?ll on?e typ?e of ?flowe?r but? not ?anoth?er,(9?) oth?ers a?re se?nsiti?ve to? the ?smell?s of ?both ?flowe?rs. T?his m?ay be? beca?use s?ome p?eople? do n?ot ha?ve th?e gen?es ne?cessa?ry to? gene?rate ?(10) ?_____?___ s?mell ?recep?tors ?in th?e nos?e. Th?ese r?ecept?ors a?re th?e cel?ls wh?ich s?ense ?smell?s and? send? (11)? ____?____ ?to th?e bra?in. H?oweve?r, it? has ?been ?found? that? even? peop?le in?sensi?tive ?to a ?certa?in sm?ell (?12)__?_____?_can ?sudde?nly b?ecome? sens?itive? to i?t whe?n (13?) to ?it of?ten e?nough?.
? The ?expla?natio?n for? inse?nsiti?vity ?to sm?ell s?eems ?to be? that? the ?brain? find?s it ?(14) ?_____?___ t?o kee?p
all? smel?l rec?eptor?s wor?king ?all t?he ti?me bu?t can? (15)? ____?____ ?new r?ecept?ors i?f nec?essar?y. Th?is
ma?y(16)? ____?____ ?expla?in wh?y we ?are n?ot us?ually? sens?itive? to o?ur ow?n sme?lls —? we s?imply? do n?ot ne?ed to? be. ?We ar?e not? (17)?_____?___of? the ?usual? smel?l of ?our o?wn ho?use, ?but w?e (18?) ___?_____? new ?smel
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