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 can 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, chips have been the main platform for cards that hold a secure digital identity. Some examples of these 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 privacy.
      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 near future). While the cards are almost as cheap as chip cards, the card readers are expensive.
                Title: (1)_______________cards

All his attention was _______ on one thing only—how to solve the problem of water shortage.

A. emphasized 　　　 B. delivered 　　　 C. paid 　　　　　　 D. focused

I hear you’ve got a set of valuable Australian coins. ______ I have a look?

A. Do　 B. May 　C. Shall　 D. Should

－Hello, Mr. Wang. Must we wear the school uniform tomorrow?

－You ___________. Only on Mondays. Tomorrow is Tuesday.

　 A. don’t have to 　 B. mustn’t 　　C. have to D. must

My laptop computer, which no one can ____________, has been out of order for a week.
A. get gone      B. have to go      C. get going     D. have gone

--Did you write to Mary last month?

--No, but I’ll_______her over Christmas Day.

A. be seen 　 B. be seeing　　 C. have seen 　 D. have been seeing

There was so much noise in the room that the speaker couldn't make myself                .    

A. being heard            B. hearing           C. heard            D. hear

I have just bought a ________table.

A. wooden beautiful coffee　 B. coffee beautiful wooden

C. beautiful coffee wooden　 D. beautiful wooden coffee

No potatoes for me—I'm ________ a diet.

A．a(chǎn)t　 B．in C．on　 D．with

You’d better take a map with you when you go to a strange place ______ you get lost.　　　

A. even though　　　 B. so that　　　 C. as if　　　　　 D. in case