1 . The three forms of water is ice, water and ________.
| A．steam | B．ice | C．liquid | D．solid |
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2 . If the temperature is raised high enough, we can turn iron into a state of _________.
| A．liquid | B．ball | C．solid | D．gas |
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3 . If the temperature is raised high enough, we can turn iron into a state __________.
| A．liquid | B．ball | C．solid | D．gas |
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4 . 把方框中所给单词与解释配对。每词限用一次。
1. a person who amuses others by ridiculous behavior
2. influence in an unfair way
3. not widely known; especially valued for its uncommonness
4. a substance that stays the same shape whether it is in a container or not
5. stay on a liquid surface; not sink
6. something additional of the same kind
7. lacking decisiveness of character; unable to act or decide quickly or firmly
8. a very young child (birth to 1 year) who has not yet begun to walk or talk
9. any strong feeling
10. a statement that solves a problem or explains how to solve the problem
| A. rare; B. float; C. emotion; D. infant; E. clown; F. solution;G. extra; H. bias; I. hesitant; J. solid |
2. influence in an unfair way
3. not widely known; especially valued for its uncommonness
4. a substance that stays the same shape whether it is in a container or not
5. stay on a liquid surface; not sink
6. something additional of the same kind
7. lacking decisiveness of character; unable to act or decide quickly or firmly
8. a very young child (birth to 1 year) who has not yet begun to walk or talk
9. any strong feeling
10. a statement that solves a problem or explains how to solve the problem
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