根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    1   When a person does a certain thing again, he is impelled(迫使)by some unseen force to do the same thing repeatedly; thus a habit is formed.Once a habit is formed, it is difficult, and sometimes impossible, to get rid of.  2   Children often form bad habits, some of which remain with them as long as they live.Older persons also form bad habits as long as they live.Older persons also form bad habits, and sometimes become ruined by them.

    3   Many successful men say that much of their success has something to do with certain habits in early life, such as early rising, honesty and thoroughness.

  Among the habits which children should not form are laziness, lying, stealing and so on.  4  

  Unfortunately older persons often form habits which ought to have been avoided.  5  

A.There are other habits which, when formed in early life, are of great help

B.Whether good or not habit are, they are easy to get rid of.

C.We ought to keep from all these bad habits, and try to form such habits as will prove good for ourselves and others.

D.Habits, whether good or bad, are gradually formed.

E.It is very important for us to know why we should get used to good habits.

F.These are all easily formed habits.

G.It is therefore very important that we should pay great attention to the formation of habits.

阅读短文,根据所读内容在文后的空格里填上适当的单词或短语。

注意:每空不超过3个单词。

  A smart card is a card that is carried with either a microprocessor and a memory chip or only a memory chip that is not programmable.The microprocessor card can add, delete, and deal with the information on the card, while a memory-chip card only do one thing.

  Smart cards, unlike magnetic stripe cards, can do many different things and hold a lot of information.In this way, they do not need to get information from a faraway place when they are used.

  Today, there are several kinds of smart cards, all of which are very popular in the market:

  IC(Integrated Circuit)Microprocessor Cards-Microprocessor Cards(chip cards)offer a larger memory and better security than the traditional magnetic stripe cards do.Chip cards can also hold data.These cards are used for many things.Thus, chip have been the main platform for cards that hold a secure digital identity.Some examples of there cards are:

  Cards that hold money.

  Cards that provide safe access to a network.

  Cards that allow setting stop boxes on televisions to remain safe from piracy.

  Optical Memory Cards-Optical memory cards look like cards with a piece of CD on the top.Optical memory cards can store up to 4MB of data.But once written, the data can not be changed or removed.Thus, this type of card is good for keeping records, such as medical files, driving records or travel histories.Today, these have no processors in them(although this is coming in the bear future).While the cards are almost as cheap as chip cards, the card readers are expensive.

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