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题库 / Prep2008E1-SC-200
A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tend not to bother to recover a perishable treat if stored long enough to have rotted.
tend not to bother to recover a perishable treat if
they tend not to bother recovering a perishable treat
tending not to bother to recover a perishable treat it
tends not to bother recovering a perishable treat
tends not bothering to recover a perishable treat it
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bother to do 和 bother doing ，费心/操心做某事
2. tend to do sth
3.and并列的是can和tends，主谓一致
错选了A，我觉得remember可以和tend平行，但是似乎hmmm没有can tend这种说法吧
it tends not to bother recovering a perishable treat stored long enough to have rotted.它往往不会费心回收一种易腐烂的食品，这种食品储存的时间太长，以致腐烂。
stored long enough to have rotted作定语，修饰treat，指食品具有被存储太久以致腐烂的性质，这里食品是不是被jay存储的无关紧要，别人存储的坏了它也不会想要。
bother doing,指在某事上费心，
2. tend to do sth。
if从句省略了主语，省略的主语是主句主语Jay
B they 不能指代单数
C 无平行
D 正确 stored后置定语修饰treat
E tend to do it指代不清
(not) bother to do something He didn\'t bother to answer the question.
not bother about/with He didn\'t bother with a reply.
(not) bother doing something Many young people didn\'t bother voting.
for instance:
Animal 1 will attack animal 2 if injected with enough of the hormones related to aggression.
--> in this sentence it is animal 1, not animal 2, that is being injected with hormones.
A：主谓不一致。
B：代词they指代科学家，不合逻辑。
C：伴随状语表示是同时发生，不合逻辑。
E：it 没有refer。To do和doing都强调主语direct involved，其实都可以用在这里。
费心去做某一件事应该是bother to do sth.才是
tend后面的意思是，如果一个食物储存时间长容易腐烂，它也不会去寻找
a,主胃不一致，a scrub是单数，应该用tends. if引导的从句没有主语
b,they指代对象有误
c, tending在and前找不到平行对象
d, stored作为treat的定语
e, tend to do sth.
and后应与（can） remember并列，用tend或者tends，c选项排
tend后面是否定，只能与can remember并列，不能与remember并列，主语为单数，a选项排
tend to do，e选项排
there is also a "bother to do" stucture登录 或 注册 后可以参加讨论
C错误因为and后面的成分无法和前面的clause平行
DE考的是外延和内涵，则tend是约束力比较强的词