科技英语突破

Unit 1 Ⅰ Scientific Reading:Welding
Ⅱ Access to Scientific English
Ⅲ Semi-Scientific Word Study
⑴Negligible,Considerable,Substanteal
⑵Melt,Molten,Smelt
⑶Property
⑷Bring about,Produce,Cause,Give rise to
⑸Critical
⑹Conducive
Ⅳ ⑴Maximum and Minimum
⑵Contents
Ⅴ Supplementary Readings and Exercises
Reading 1 Air Bearings
Reading 2 Ozone Depletion and Cancer
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