8．As the intelligence of robots increases to match ________ of humans，we may use them to expand our frontiers．（　�。�
A．itB．thatC．whichD．them

分析 因?yàn)闄C(jī)器人的智慧增長(zhǎng)得可以和人類(lèi)相媲美，我們也許可以用它們?nèi)ラ_(kāi)拓我們未知的領(lǐng)域．

解答 答案：B 題干中指代的是intelligence智慧，抽象名詞；it指代同一事物，that指代抽象名詞，which引導(dǎo)從句，them指代復(fù)數(shù)．that指代抽象名詞時(shí)，后常有of短語(yǔ)修飾．故選B．

點(diǎn)評(píng) 代詞用法靈活．學(xué)習(xí)時(shí)，要注意積累．特別是相似用法，要注意區(qū)分和掌握．特別是one，it，that比較容易混淆的，one指代同類(lèi)事物中的任意一個(gè)；it指代同一事物；that指代不可數(shù)名詞．

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