题目

下图中甲、乙两地的纬度相同，a、b两地海拔高度相同，回答下列小题：【小题1】夏季b地气温比a处高的主要原因是：                                （   ）A．地面是大气的主要直接热源B．地面保温作用比空气好C．大气的散射作用比地面强D．大气辐射比地面辐射强【小题2】清晨b处气温比甲处低的主要原因是：                                （   ）A．到达b处的太阳辐射少B．b处大气的逆辐射作用较弱C．b处地面按要求变换下列句型。【1】They have ever been to an English-speaking country. (一般疑问句) ______________ they ever ______________ to an English-speaking country?【2】She has been a flight attendant for two years.(对划线部分提问)_______________________ she ________________ a flight attendant?【3】His father has been to America twice.(对划线部分提问)_______________________ has his father __________________ to America?【4】Linda is taller than any other girl in her class. ( 同义句)Linda is __________________________ girl in her class?【5】improve, why, you, do, English, want, to, your (连词成句)______________________________________________________________?