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故正确答案为选项B。 4. How was your trip to Qingdao Jack? Great! The beach there was very beautiful, the seafood was nice A. or B because C but D and 【正确答案】D 【解题思路】本题考查连词。根据题干中" The beach there was very beautiful the seafood was nice"可知,沙滩很美与海鲜很好为并列关系。选项A表示选择关系; 选项B表示因果关系;选项C表示转折关系;选项D表示并列关系。故正确答案为选 项D。 5. Knowledge is power, but sometimes I feel thoughts are than knowledge A. powerfu B. more powerfu C. most powerful D. the most powerful 【正确答案】B 【解题思路】本题考查形容词比较级。根据题干中“than”可知,需要选择形容词比较 级。选项A为形容词原级;选项B为形容词比较级;选项C为缺少the的形容词最高 级;选项D为正确形式的形容词最高级。故正确答案为选项B。 6. My grandma has three dogs. She them every morning A is walking B has worked C walks D walked 【正确答案】C 【解题思路】本题考查一般现在时。根据题干中“ every morning”确定是一般现在时。 选项A为现在进行时;选项B为现在完成时;选项C为一般现在时;选项D为一般过 去时。故正确答案为选项C。 7..Lily, you look after yourself while your parents are away Of course I can. I 'm not a baby A can B need C should D. must 【正确答案】 A 解题思路】本题考查情态动词。根据题干中回答语“ Of course I can”可知,本题用 can来提问。选项A为can,表示能够;选项B为need,表示需要;选项C为 should, 表示应该;选项D为must,表示必须。