2. 外语
  3. —Read the text below about supermarket checkouts. —In most of the lines 41-52 there s one extra word. It is either grammatically

—Read the text below about supermarket checkouts. —In most of the lines 41-52 there s one extra word. It is either grammatically

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问题 —Read the text below about supermarket checkouts.
—In most of the lines 41-52 there s one extra word. It is either grammatically incorrect or does not fit in with the meaning of the text. Some lines, however, are correct.
—If a line is correct, write CORRECT on your Answer Sheet.
—If there is an extra word in the line, write the extra word in the line. Write the extra word in CAPITAL LETTER on your Answer Sheet.

                          CHECKOUTOPERATORS
     Supermarket Checkout operators sit at electronic tills and feed in the prices of the
     customer’s goods This is now done by ’scanning’, passing each such item over
34.  a device that reads the bar-code on it and automatically registers it down in the
35.  till. They may weigh some products, such as fruit, on scales near the
36.  tilt. When all the goods will have been scanned, the till provides a total and the
37.  operators take payment in the cash, by cheque or by credit or debit card. and
38.  give a till receipt and any more change required. They provide bags, often
39.  help to pack purchases, and change paper till rolls as being necessary.
40.  They also make it sure they have enough change, credit card forms, and carrier
41.  bags. Operators ring a bell or buzzer to summon for a supervisor to help
42.  with problems, and put notes and cheques into bags for periodic collection.
43.  They enter their personal details in the till, so that their performance can be
44.  analysed later. The system offers supermarkets an efficient way of handling with a
45.  large number of customers purchasing many products and helps to keep checkout queues to a minimum.

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答案BEING
解析 “as necessary”是“as it is necessary”的简写。
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