1.Many times(多次)前用介词by;
2.在英文中除了表示“时间”与“距离”要用介词for;距离还可用through,同湿度、角度;其他表示数量时要用by,同时这个介词可以省略。
The shadow of each participant can be used (by) many times.
3.Keep 在科技文中只用作及物动词,所以“保持不变”有两种表达:
(1)特殊的连系动词+形容词(作表语):remain/stay constant/unchanged/fixed/unaltered/the same.
(2)及物动词的被动式+形容词(作主语补足语):be maintained/kept/left/held constant/unchanged/fixed/unaltered/the same.
4.表示比较的程度“得多”应该在比较级之前加上一个副词如much/far/very/greatly/considerably/appreciably/significantly/substantially/a lot/a great deal/
5.在论文文摘中第一句不必加上“in this paper”。
6.一种新药:a new drug而非a new kind of drug.
7.治疗效果:therapeutic effect
8.Easy and difficult 只能用来描述事情而不能描述人;They are easy to get along with之所以成立是因为反射式不定式结构,其含义为It is easy to get along with them.
9.Apply for 申请、apply to 适用于
10.凡是有one of/many of/all of/none of/the rest of等后面跟的复数名词必须有定冠词,否则有物主代词或者指示代词等,表示“在一定范围内的”:Quite a few of our teachers are professors.