Unit 11 Light Metals (2) Production of Magnesium Part Ⅰ Reading and Comprehension Part Ⅱ Reading and Practice Part Ⅲ Lsintening Training Part Ⅳ Speaking Training Part Ⅴ Writing Training Part Ⅵ Translation Training Unit 12 Light Metals (3) Production of Titanium Part Ⅰ Reading and Comprehension Part Ⅱ Reading and Practice Part Ⅲ Lsintening Training Part Ⅳ Speaking Training Part Ⅴ Writing Training Part Ⅵ Translation Training Unit 13 heavy Metals (1) Production of Copper Part Ⅰ Reading and Comprehension Part Ⅱ Reading and Practice Part Ⅲ Lsintening Training Part Ⅳ Speaking Training Part Ⅴ Writing Training Part Ⅵ Translation Training Unit 14 Heavey Metals (2) Production of Lead Part Ⅰ Reading and Comprehension Part Ⅱ Reading and Practice Part Ⅲ Lsintening Training Part Ⅳ Speaking Training Part Ⅴ Writing Training Part Ⅵ Translation Training Unit 15 Heavy Metals (3) Production of Zinc |
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