40. invest millions of dollars in research to do sth. (不是for doing) t112
41. use sth as sth or use sth to do sth. t120
42. one …another…t126; some…others…
43. substitute sth. for sth. t127
44. restitution to sb. for sth. (表示原因) t130
45. equal 以及equivalent 不仅仅指数量相同,而且常常修饰un; as …many as 修饰cn. t132. eg. an equivalent amount of resistance,a volume of water equal to the lake michigan.
46. 介词 + which 优于where t137
47. suggest doing sth. t160
48. consider sth. sth. t65,79,154
49. require that x be y.t227
50. expect sb. to do sth.,expect sth. to be.,expect that, expect to do sth. or expect sth.
51. sth. is believed to do.;believe x to be y t9;sth. is expected to do sth. t131; x orders y to do sth / be + 过去分词 or x orders that y do sth / be +过去分词
52. 动词的名词形式+of +a by b 可以做如下理解, b+动词+a;如requirements of irrigation by earlier high-yielding <I>var</I>ieties 即earlier high-yielding <I>var</I>ieties require irrigation t128
53. demand / mandate / propose that + 无should虚拟语气,(t142/t145);注意无demand/mandate sb. to do sth.的用法