Unit 4 Section ⅡⅠ.单句语法填空1．Mary is very proud because her father is an astronaut.解析：考察冠词。句意：Mary 很自豪，由于她父亲是宇航员。astronaut 是可数名词，且发音以元音音素开头，因此用 an。2．They don't allow parking(park) in front of the office.解析：考察非谓语动词。句意：他们不容许在办公室前停车 。allow doing sth.容许做某事，为固定使用方法。3 ． How we can raise enough money for the project remains to_be_discussed(discuss)．解析：考察非谓语动词。句意：我们怎么才能为该项目筹到足够的钱有待讨论。分析句子构造可知，discuss 和主语之间是逻辑上的动宾关系，且根据句意可知，discuss 这一动作将要发生，因此用不定式的被动式。4．Tom，as well as his parents，is_watching(watch) TV at present.解析：考察主谓一致和时态。句意：目前 Tom 和父母正在看电视。as well as 连接两个名词或代词作主语时，谓语动词的数与其前的名词或代词保持一致；且根据时间状语 at present 可知，此处要用目前进行时。5 ． It seems to me that you could succeed in persuading him to change his mind.解析：考察主语从句。句意：在我看来你能说服他变化主意。分析句子构造可知，It 为形式主语，真正的主语是空处引导的主语从句，因主语从句中不缺成分，故用 that。6．It is uncertain what side effects the medicine will bring about.解析：考察主语从句。句意：这种药物会带来什么样的副作用还不确定。分析句子构造可知，空处引导主语从句，从句中缺乏定语，表达“什么”，背面可以直接跟名词，故用 what。7．What I want to tell you is the deep love and respect I have for you.解析：考察主语从句。句意：我想告诉你的是我对你深深的爱和尊敬。分析句子构造可知，空处引导主语从句，且从句中缺乏宾语，指事物，故填 What。8．It is still under discussion whether/if the old bus station should be replaced with a modern hotel or not.解析：考察主语从句。句意：这个旧的公交车站与否应当被一种现代旅馆替代还在讨论中。still under discussion(还在讨论中)表明事情还没决定；且根据空后的 or not 可知填 whether/if，表达“与否”。9．It is reported in the...
