Plastics exhibition

题目与答案

1. History

   - first plastic developed to replace ivory in sports equipment

   - 31 semi-synthetics, e.g. commercial celluoid - used _____ and acid

   答案：cotton

   原文定位：One of the early semi-synthetic materials produced was the first commercially produced celluloid, or plastic film, which was made by dissolving cotton in a strong acid, such as nitric acid

2. - 32 experiments making plastics from _____ products were unsuccessful

   答案：milk

   原文定位：They also experimented with making plastics out of products derived from milk, but this didn't really work

   同义替换：「from」↔「out of;derived from」，「were unsuccessful」↔「didn't really work」

3. - 33 earliest fabric to be produced was artificial _____

   答案：silk

   原文定位：One of the first uses of plastic was in the production of artificial fabric, and the earliest successful one was a substitute for silk

   同义替换：「artificial」↔「substitute for」

4. - Bakelite invented in 1907

   - 34 first plastic produced in a _____

   答案：laboratory

   原文定位：This was the first entirely synthetic plastic made in a laboratory

   同义替换：「first plastic produced」↔「first entirely synthetic plastic made」

5. - 35 invented by a _____ called Hendrik Baekeland

   答案：chemist

   原文定位：It was invented by Hendrik Bakeland, a chemist who had made a fortune from producing paper used in photographic processes

6. - 36 unusual because it becomes _____ when heated.

   答案：hard

   原文定位：Bakelite is a pretty unusual type of plastic because it actually gets hard when it's heated

   同义替换：「becomes」↔「gets」

7. Exhibition

   Problems with display:

   - 37 older plastic objects may release acidic _____

   答案：gas

   原文定位：Some of the older plastics on display are unstable. This means that when they are in the process of degrading, they may produce gas which are acidic

   同义替换：「release」↔「produce 」

8. - 38 plastic objects degrade in _____

   答案：light

   原文定位：there is one thing which causes plastic objects to degrade or break down, and that is light

   同义替换：「plastic objects degrade」↔「causes plastic objects to degrade;break down」

9. Popular exhibits:

   39 chandelier made using recycled _____

   答案：pen

   原文定位：It's made entirely of pen, ones which we use and throw away every day

   同义替换：「made using recycled」↔「made entirely of」

10. 40 Car made in Japan from semi-synthetic materials base on substances found in _____ .

    答案：Japan

    原文定位：A second exhibit, which is drawing a lot of attention, is a car made entirely from plastic, which is now in small-scale production in Japan

    同义替换：「from semi-synthetic materials」↔「from plastic」