Vocabulary Breakthrough

A组　前缀

solve v．→dissolve v．溶解；分解；分离

B组　后缀

mix v．→mixture n．混合物

conclude v．→conclusion n．结论

react v．→reaction n．反应

equip v．→equipment n．设备；装备

part n．→partial adj.部分的；局部的

astonish v．→astonished adj.吃惊的

C组　转化

v．↔n.aim目标；目的

n．↔v.contract收缩

form形成

A组　同义词

equipment n．↔facility n.

goal n．↔aim n.

common adj.↔ordinary adj.

surprised adj.↔astonished adj.

B组　反义词

expand v．↔contract v.

1．背诵经典　Metals，such as potassium and sodium，can expand or contract with the change of temperature.

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