...co-operatively breeding species (those in which, for lack of other opportunities, several females collaborate to raise the young of only one of them) are more ornamented than those in which all adult females have a chance of breeding. In this case it is females who are competing ...
...的，怎么不用did, 因为整段对话中都是用的过去式.I hear it's often foggy，这是否应该也用过去多?第三句,fill in the blanks withe words in the brackets. make new sentences withe the words in brackets.书上的，一个用了the,一个没有用。第四...
...本书上看到这样一个句子：She married young (=at a young age), and was divorced when her children were tiny. 她结婚很早，孩子很小时就离了婚。句中的括号内用了 at a young age，这符合英语习惯吗？是否应该改为at an early age？
...ents yesterday. 我昨天有幸遇见了你的父母。We met some friends and other people in addition. 我们遇见几位朋友，还遇见其他一些人。但也看到用meet with的。如：He met with two strangers in the wood. 在森林里他遇见两个陌生人。请问老师这样用也可...
...s, researchers canvassed nearly 3,000 adults in the U.S., Canada, Iceland, and Australia, examining levels of support for legal measures to address weight discrimination. 研究人员采取在线调查方式，问询了近3000名美国、加拿大、冰岛和澳大利亚成人...
...s clearly as before, I took the plunge in hopes that in the depths of fear and failure, I would come out feeling more alive than ever before.尽管不能清晰地看见未来，在恐惧和失败的深渊里，我们也要保持希望，那么我们将活得更有生命力。请问老师，标红的...
ADJ-GRADED 典型的;有代表性的 You use typical to describe someone or something that shows the most usual characteristics of a particular type of person or thing, and is therefore a good example of that type.是否存在表示特指的用法？
老师好! 语法书上有道习题:Both Chinese and American parents were asked what they wanted most for their children. Chinese parents wanted their children to be successful, while American parents expressed a desire ___happy. A. their children to beB. for their children C. their child...
a signal is fed back to the input and combined with the input signal to produce a desired system response.fed 和combined 应该都是被动语态，，可是只用了一个be动词，这在语法上是合理的吗？谢谢老师！
... taste, is a simple expression comprising a culinary
tradition with long-standing history and thousands of named dishes.编者译文：“中国人的口味”，即烹饪的符合中国人口味的食物，这是一种简单的表达，其中包含了悠久的烹饪传统和数千种具有名字的...
...子是：You can't avoid some work in order to learn some necessary words and
all the more if you want to learn quickly.这里all the more 后面是省略了work 吗？all the more 我记得一般是就是指“更加”，是修饰形容词的，我感觉我的理解解释不通。难道这里all t...
...高中英语新教材人教版必修一 p3：Try to use the
introductions and greetings below.一般都认为：try to do表示“试图做”，try doing 表示“试着做”。但感觉这里应该就是翻译成“试着做”啊。不是可以像下面这样翻译吗？试着使用下面的介...