【正确答案】 B

【答案解析】[听力原文] 24-30

In these days，much of the profit of a business—sometimes the whole of its success—depends on the use of the odds and ends．The odds and ends are various small things．They are left over when the main thing is produced．Yet they have a real value of their own．
All kinds of big businesses have their odds and ends．In a big meal factory,for example， there are countless odds and ends—bones and hair,to name only a few．The bones are made into glue；the hair is made into rope．If these odds and ends were to be looked down upon，it would mean a big difference in the amount ofthe profit ofthe factory．
We students have our own odds and ends．Take time for instance．Every one of us has the same amount of it．Our success or failure depends on the use of our time．But we use the time more or less in the same way．We have our regular day’s work：certain periods of classes，or several hours for review．And that ends a day．
But what about its odds and ends—the odd moments?Many giants in science or art have made huge successes for themselves in the world mainly because they have made best use of their odd moments．Take Thomas A．Edison．While he was earning his living by tapping out messages，he did not allow his odd moments to slip by．He thought，he planned，and he tried between messages．And he succeeded in working out a lot of things entirely new to t11e world． By fully using his odd moments，he provided valuable wealth for the modern world．
Think of the odd quarter of an hour in the morning before breakfast, the odd half an hour after dinner，and the odd moments in the washroom or between classes．Remember the chances to read or think that come now and again during the day．Make full use of them，and you may find，as many big businesses have found，that the real profit in using the odds and ends．

[解析] 按照文中意思，零星杂物是各种各样微不足道的小东西。有时整个生意的成败取决于对它们的利用。A过于绝对，不是所有的生意成败都取决于对零星杂物的利用。C是一些现象，不足以说明零星杂物有用的原因。

【正确答案】 A

【答案解析】[解析] 如果这些零星杂物被弃之不用，工厂利润会大大减少。B只说了半截话，应该是杂物被弃用，工厂利润会与不弃用大大不同。C所在的句子是If these odds and ends were to be looked down upon，意思是：假如零星杂物被小瞧的了话，工厂利润会大大减少。假设不能等同于真实。

【正确答案】 A

【答案解析】[解析] 学生们学业成功与否很大程度上取决于对零星时间的利用，不是功课的固定不变，也不是对零星时间的利用决定学业。

【正确答案】 C

【答案解析】[解析] 取得巨大成功的科学家非常懂得零星时间的重要性。A中 have odds and ends used well是使动用法，意思是让别人利用好零时间。B过于广泛不具体。

【正确答案】 A

【答案解析】[解析] 当爱迪生干发报员工作时，从来不让零星时间溜走。他总是思考，做计划等。思考和做计划是利用零星时间的部分，故B不正确。C表示总是发报不休息，显然不合理。

【正确答案】 C

【答案解析】[解析] 如果人们充分利用零星时间，会有很大的收益，本文宗旨就是这个。A仅限于工作，不全面。B把get much profit仅理解为表面的意思，没有深入下去，较肤浅。

【正确答案】 A

【答案解析】[解析] 本文对odds and ends的理解是零星杂物，也就是微不足道的，看似用途不大但一旦加以利用就会起巨大作用的东西，A符合这一解释。B只是科学家爱迪生的例子。C则是对odds and ends给予表面解释，不深入。