Module 5  A Lesson in a Lab
1. Water exists as a solid, a liquid and a gas.
  eg. They are so poor that then can hardly exist.
    The exist on very little money.
用法归纳：exist on                          existence  n.
          bring/call into existence
          come into existence                existing  adj.
1) I can hardly exist ____ the wages I’m getting, there is no money for luxuries.
  A. for    B. by    C. on    D. with
2) People do not now believe in the ______ of ghosts.
  A. birth    B. evidence    C. existence    D. occurrence
2. When you heat a metal, it expands.
  eg. Heat expands metals.
    You mentioned the need for extra funds. Would you expand on that?
主要用法：expand sth. into sth.
          expand on sth.
1) Our foreign trade has ______ greatly in recent years.
  A. grown    B. increased    C. broadened    D. expanded
近义词辨析：expand
            extend
            stretch
2) ________ from a short story, the novel is very popular with children.
  A. Expanded    B. Extending    C. To be stretched    D. Being widened
3. Steel is a mixture of iron and other substances.
  eg. The drink is a mixture of three different sorts.
      The talk was conducted in a mixture of English, Russian and French.
动词用法：mix A with B/ mix A and B (together)
          mix sth. (into) to sth.
          mixed  adj.
1) She also said she had _____ feelings about returning to land after so long at see.
  A. mixed    B. sad    C. cheerful    D. horrible
2) You should take care of yourself, _____ business with family.
  A. mix    B. to mix  C. mixing  D. mixed
4. It is hard to think of a world without metals.
  eg. It is important to learn English well.
      It is necessary to respect the old.
  句型归纳：It作形式主语　
      It + be + adj. + (for sb.) + to do sth.
            It + be + adj. + (of sb.) + to do sth.
            It + be + no good/use doing sth.
            It + be + adj./n. + that…
            It + v. + that …
1) _______ the harder you work, the better result you will get.
  A. It’s believed that    B. What we believe that 
C. It’s fact that          D. What the fact is
2) _________ worries me the way he keeps changing his mind.
5. Different metals have different uses, for example, steel is used in cars, and iron is used in electrical equipment.
  eg. The complete equipment of the new hospital will take a year.
    Without the equipment, the mechanic could not repair the car.
动词用法：equip … with …
          equip … for sth/ to do sth.
          be equipped for …
react to do          be equipped with …
1) The explorers were told to _____ themselves with everything they would need for the vo
yage.
  A. associate    B. equip    C. retreat    D. feed
2) --- Did you see the new movie directed by that famous director? It’s said to be ______ great fun.
  --- No. I have been busy repairing all the broken office _____ these days.
  A. a; equipment  B. the; equipments  C. /; equipment  D. /; equipments
6. When we use metals, it is important to know how they react with different substances, for example, water and oxygen.
  eg. Many chemical substances react with oxygen.
单词用法：react against                    react to
          react to/upon…                  react with…
          chain reaction                    action and reaction
1) How a person _____ to criticism often means the difference between success and failure.
  A. reacts    B. resist    C. recreate  D. receive
2) 酸对金属有什么影响？
  How do acids react ____ metals?
3) 人们会起来反对这个独裁者吗？
  Will the people ever react ______ the dictator?
4) 听众对他的演说立即起了反应。
  The audience reacted readily _______ his speech.
7. The reaction of metals with these substances can be put in order.
  eg. His secretary helped him to put his papers in order.
    Put the following sentences in order.
  用法大全：put sth. in order
            in order                      out of order
            place an order with … for sth.
            in good order                  in bad order
            keep order                    public order
            take orders                    under the orders of…
1) We have placed an order ____ 1,000 textbooks ____ the bookshop.

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