【词汇大师】站在语法背后的原因(1/2)

英语自学网

20121202105741975_943_o23.jpg

那些语法你都弄明白了吗？词性转变为什么这这样规定？V+ing=N?如果你懂得了语法背后的原因，也许就能轻而易举了掌握语法了。
TIPS
本篇听写只听写嘉宾的话，主持人的不需要听写。
Where you would say 'I weigh a hundred pounds.'""For example, there's a rule that says with active verbs you can use the -ing, the present participle, as in 'I am speaking about grammar.' But if you have a stative verb, a so-called stative verb, you can't use the -ing, so you can't say 'I am knowing about grammar.'
"Now that's a rule, and it works more or less. But it works less, the less part comes in when you have verbs that have both active and stative meanings. So a verb like weigh, w-e-i-g-h, you can't say 'I am weighing a hundred pounds,' but you can say 'I am weighing the meat at the scale' because it's an action as opposed to a state."
"That's right, you say 'I weigh a hundred pounds' but 'I am weighing the meat that I'm going to buy.'"