题目

如下图是物质进出细胞方式的概念图，对图示分析正确的是（   ）A．据图可确定①为不耗能需载体蛋白的协助扩散B．⑤、⑥两种方式的共同特点是顺浓度梯度运输物质C．母乳中的免疫球蛋白可通过①、③两种方式被吸收D．质壁分离实验中蔗糖进入细胞的方式为① 答案：B 补全对话：阅读下面对话，并在方框中选择一个恰当的句子填空。 A：Mum, my pen pal, Linda, has written to tell me that she will come to visit us next Saturday． B：(1)________ Will she come by plane or by ship? A：By plane, of course．It's only two hours and a half by plane．(2)________ B：But you have never seen each other． A：(3)________ I will write her name on a large piece of cardboard and she will see me easily． B：That's a good idea．(4)________ A：Oh, a lot of places．There are so many interesting and beautiful places in Shanghai．(5)________ B：I think you should make a time-table first．(6)________ A：Oh, thank you, Mum．