英语

　　1.in the experiment the researcher placed a rat in a maze ( ) it was presented with different smells to see if it can.

　　a. what

　　b. that

　　c. where

　　d. which

　　【答案】c。考查定语从句，“在这个实验中，是将小白鼠放置在雾霾中进行测试”，in a maze是先行词，是一种状态，且后面的从句是个完整的句子，所以应该用关系副词，故选项c正确。a项不用于定语从句中;b项that在定语从句中通常充当主语或宾语，修饰人或物;d项的先行词应该是物。

　　2.doctors have to be very careful when making a ( ).

　　a. treatment

　　b. symptom

　　c. diagnosis

　　d. patient

　　【答案】c。考查词汇辨析，a指治疗，b指症状，c指诊断，d指病人。在这句中就是指医生在诊断的时候要非常谨慎认真。故选项c正确。

　　3.she would rather that her husband ( ) travel duing the bad weather but he insists that he return home today.

　　a. do not

　　b. not

　　c. must not

　　d. did not

　　【答案】d。考查虚拟语气。would rather that sb.，这里要用虚拟语气，这个是与现在相反，故要用过去时，所以选项d正确。

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