题目

下图1表示物质进入细胞的不同方式，图2、图3是物质进出细胞的相关曲线图。据图回答下列问题： （1）由图1可知，物质A、B、C跨膜运输的方式依次是______________、______________、______________。（2）图1所示的物质B和C跨膜运输方式的相同点是_____________________________，不同点是_______________。（3）某种物质D能专一性地破坏物质C的载体蛋白，若用物质D处理细胞，则物质C跨膜运输的速率会______________。故处理细胞的物质D可能是______________，物质D还具有的其他特It's necessary to discover what you are good at or not and what you like or dislike.Many students would be unhappy if they _______ in a very difficult physics course, but in fact they have known a lot about themselves. They realize that they will not become engineers or physica1 scientists ______. So failure can help a student to live a _______ life if he or she draws something out of it. They may then decide on their aim and _______ the kind of work that they would be fit for and they would like to do.You can't be sure ________ you like something until you have tried it. If you make a _____that you would like to play the violin, you need to take more music classes ______ you know if you are really interested in it.It is not enough to hope to be a violinist. You also have to stand (忍受) the _______practice before you become one. If you would enjoy being a great violinist, but ______ the hard and boring work, just give it up.It's a good plan to try as many ideas as possible when you are still _____ . And then you will be able to find out what your true interests are.【1】A. joined B. failed C. picked D. operated【2】A. since then B. after that C. just now D. in the futt【3】A. cleaner B. further C. happier D. harder【4】A. choose B. check C. provide D. catch【5】A. while B. what C. whether D. when【6】A. advice B. decision C. tip D. example【7】A. for B. as C. after D. before【8】A. terrible B. hard C. easy D. sudden【9】A. finish B. hate C. enjoy D. keep【10】A. young B. old C. sad D. happy