A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tends not bothering to recover a perishable treat if stored long enough to have rotted.
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shisu0610041 2016-07-26 22:31:38
重点是if，如果加了if,那么句子就是a scrub jay tends not to bothering to recover a perishable treat if stored long enough to have rotted. 这个if从句中省略的主语是jay，而不是treat,错误。 stored long enough to have rotted 应该是treat的修饰语。
chuster 2016-05-26 19:39:15
E：首先要选tends;其次，tend to do sth,而bother +to do/doing都行； 重点是if，如果加了if,那么句子就是a scrub jay tends not to bothering to recover a perishable treat if stored long enough to have rotted. 这个if从句中省略的主语是jay，而不是treat,错误。 stored long enough to have rotted 应该是treat的修饰语。
chuster 2016-05-26 19:39:16
E：首先要选tends;其次，tend to do sth,而bother +to do/doing都行； 重点是if，如果加了if,那么句子就是a scrub jay tends not to bothering to recover a perishable treat if stored long enough to have rotted. 这个if从句中省略的主语是jay，而不是treat,错误。 stored long enough to have rotted 应该是treat的修饰语。
励志yy 2016-11-14 10:42:40
if修饰前面句子主语，自己体会。 choice (a) (as well as (c) and (e)) implies that the bird itself is "stored long enough to have rotted"
Queeniebaby 2016-09-17 18:17:55
tend to do sth
zyt755 2016-03-26 10:33:06
tend to sb/sth; tend to do sth; (not) bother to do something (not) bother about/with (not) bother doing something
ccccchhhhh 2015-07-11 09:56:58
tend to sb/sth; tend to do sth; (not) bother to do something (not) bother about/with (not) bother doing something
773 2014-05-08 23:14:26
没有tend doing
