...res this land will be protected and available for all generations to come. Since
1934, better than half a billion dollars has gone into that Fund to purchase more
than 5 million acres of habitat. Little wonder the Federal Duck Stamp Program
has been called one of the most successful conservation pro...
...ge. 10 岁出头往往是个麻烦的年龄。She had been
smoking heavily since her teens. 她从十几岁起抽烟就抽得很凶了。要表示十一二岁的孩子，英语也有一个专门的单词，即 tweens。如：It is a movie
that appeals to tweens. 那是一部十一二岁的孩子感...
...icts. 我的儿子和丈夫都是足球迷。He
has been a baseball addict since boyhood. 他从少年时代起就是一个棒球迷。She
is a TV addict and watches as much as she can. 她是个电视迷，看起电视来没完没了。(2) 动词用法：前面说过，在现代英语中，addict...
...意思，为什么还有用when？岂不是误人子弟！虽然主从句时态告诉了我们。原句：3、By then, however, in many places the grass had already taken root. In place of the great trees which had been growing there for centuries patc...
...赛有两个等级，初学者等级和高级等级。(2015湖南卷听力)Since
then, I have taken courses like Data Science and Advanced Mathematics. 从那时开始，我学习了数据科学、高等数学之类的课程。(2016北京卷阅A)(2) 先进的，超前的：既指发展程度之高...
...而推测出来的情况，所以主句通常需要情态动词（或将来时态）。如： If you move, I’ll shoot you.If it rains, the match will be cancelled.If I press this button, what will happen? 这类句子中，从句也可能是现在完成时或现在进行时。I will retu...
...ood
than patients infected with the other three
malaria species. ( malaria)Since the mid-1960s there has been a marked
shift in employment from manufacturing to services, including tourism, with the
service sector accounting for nearly four times
the number of jobs as the manufacturing
sector.（Sco...
...-media experience, however: I’ve spent little time in
front of a camera, since I have a face made for radio. But that didn’t stop
China Daily from asking me last week to share a personal story for a video
project about the integration of Beijing, Tianjin and Hebei province. 翻译：然而，在...
...go. “The set of speech sounds we use has not necessarily remained stable since the appearance of human beings, but rather the huge variety of speech sounds that we find today is the product of a complex interplay of things like biological change and cultural evolution,” said Steven Moran, a memb...
...表示将来的能力：通常不用can或could，而用be able to的将来时态。如：I’ll
be able to speak French in another few months. 再过几个月我就会讲法语了。但是，若表示现在决定将来是否有能力做某事，则可用 can。如：I haven’t got time
today, but ...
...1.
构成方法被动语态由“助动词be+过去分词”构成。不同时态的被动语态如下表： 2.
用法举例Football
is played all over the world. 全世界都有人踢足球。Rome was
not built in a day. 罗马不是一天建成的。He will be
asked to speak at the meeting. 他...