2019学年度北师大版选修七Unit20Lesson1课件(36张)
2019学年度北师大版选修七Unit20Lesson1课件(36张)第4页

◆语法感知

语法导学

用所给动词的正确形式完成课文原句 1.By the year 2015,the clothing industry (produce) new types of material that will remain stainless no matter what you spill on them. 2.By the year 2030,development in biochemistry and medical science (make) it theoretically possible for us to live for at least 150 years.

will have produced

will have made