After several years of observation, the research group ______ the conclusion that language acquisition is faster when students ______ to the situation where it is spoken.


  1. A.
    has come to; expose
  2. B.
    have arrived at; are exposed
  3. C.
    has concluded; are exposed
  4. D.
    have reached; expose
B

試題分析：考查固定短語(yǔ)，arrive at the conclusion意思“得出結(jié)論”，be exposed to意思“面對(duì)”，come to意思“共計(jì)”， concluded意思“結(jié)束”， have reached意思“到達(dá)”，句子意思“經(jīng)過(guò)幾年的觀(guān)察，研究小組得出當(dāng)學(xué)生面對(duì)說(shuō)語(yǔ)言情況時(shí)，語(yǔ)言獲得是最快的結(jié)論”，所以選B
考點(diǎn)：考查固定短語(yǔ)
點(diǎn)評(píng)：注意句子he research group have arrived at the conclusion that language acquisition is faster when students are exposed to the situation where it is spoken.是個(gè)復(fù)合句，含有兩個(gè)定語(yǔ)從句，和一個(gè)時(shí)間狀語(yǔ)從句，the conclusion that language acquisition is faster，先行詞是the conclusion，從句hat language acquisition is faster，引導(dǎo)詞是關(guān)系代詞that；when引導(dǎo)的時(shí)間狀語(yǔ)從句，句子the situation where it is spoken.先行詞是the situation，引導(dǎo)詞是關(guān)系副詞where。
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     L'HAYLESROSES,France:Three teenage girls admitted starting a fire in a suburban Paris housing
project over the weekend that killed 17 people,including three children,police said yesterday.A fourth girl
was held yesterday morning.
     The fire in a 19storey building south of Paris was the third fatal blaze in the Paris area in nine days.The
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     Witnesses claimed to have seen a group of youths who lived in the building start the fire,said Patrick
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     The fire is believed to have broken out in the lobby (門(mén)廳) of the building before raging up a stairwell at
least three floors.Some residents jumped from windows as the fire spread through the building's entrance.
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B．the lobby of the building was covered with wood
C．the witnesses were familiar with the teenagers
D．the residents shouldn't have jumped from windows
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