Babies cry to
call attention to their immediate needs: food, or rest, or a diaper change or
cuddles. But without intending to, crying babies might also provide insight
into a defining trait that will develop later in life. As Matt Stevens of the
New York Times reports, a new study has found that the...
请教专家几个问题：1、关于动词时态1）-- There is someone knocking at the door? -- It must be the computer repairman. I ____________ (call) him to fix my computer. 请问此题时态如何确定。在具体语境（尤其是没有时间状语提示的情况下）过去...
...fficer Adam Bain said. Twitter surpassed 100,000 active advertisers during the third quarter and began making money from logged out users, or those without accounts who visit the site, he noted.首席运营官AB说，“视频广告帮助提高了广告业的业绩”。并且他注意到，推特...
They want the critical thinking and creativity of Western education,but not want to shoulder the very high fees and foreign "bubble" of international schools.but后为什么不是don't want to而是not want to
老师好!Now that my former headmaster,Mr.Page,is retiring,pupils of the school will be sending him a gift and an album with the signatures of all those who have contributed.Many former pupils will be attending a farewell dinner in his honour.本句中 be retiring 表示即将要退休（将来时...
Based on their findings, they identified a succession of phases of agricultural development in the wetlands there, with several of these phases predating the earliest known agricultural influence from Southeast Asia.请问老师：句中predating...是宾补还是后置定语，是不是只能根据...
...表示的是状态的延续，比如，she didn’t go to bed until her mother came back，这里的go本来是短暂性动词，但是not go就表示一种没有去睡觉的状态。这样的结论似乎有一定道理，但我总感觉这不够全面和准确。比如一个反例，he broke the wi...
Building maintenance workers were circulating through the office space ensuring power had been restored,which it had.首先这是一个复杂句S：Building maintenance workers，其中building maintenance是名词作定语修饰workersP：were circulating,又助动词的be和动词circulate构成...
Mary, at the end of a long concerto, was glad to purchase praise
by Scotch and Irish airs at the request of her younger sisters.玛丽弹完一支长协奏曲之后，也乐于接受她两个妹妹的请求，又弹了几支苏格兰和爱尔兰小调。两个问题请教曹老师：1. 我查了glad...
Before
he had entered the institute, Jim served in the army.为什么当before使用过去完成时的时候，主句为什么不用过去完成时呢？主句的动作显然发生在before从句动作之前，按理主句应该用过去完成时呀！？所以我的疑问是我提问的句子，bef...
...When
the woman shook her head in bewilderment, Harry went on to explain that
'myrolite' was a hard, amber-like substance which could be used to remove
freckles. This explanation evidently conveyed something to the woman who
searched shelf after shelf. She produced all sorts of weird concoctions, ...
...以的，do 有宾语时有时也是可以的。请看如下外刊例句：They all,
therefore, gave me advice as to when to marry, whom to marry, why to marry and how to marry. 我认为这个句子是完全正确的，在这种语境和结构中，而且只能这样用。外刊类似的例句很...
...如下面的句子肯定是不定式作表语：Her work is to look after the children. 她的工作是照顾这些孩子。My aim is to start up my own company. 我的目标是开办一家我自己的公司。但下面的句子也属于不定式作表语吗？Such people are to be pitied. 这种人...
①If he had not been promoted,he would never have remained with the company. ②If he had not been promoted,he would never remain with the company. 这两句的意思有区别吗？
是不是第一句的 主句用的是would have done 代表的意思是 如果他没有被提升，他就...
我在TOEFL长难句资料上看到这样一句话：During the 1940's electron microscopes routinely achieved resolution better than that possible with a visible light microscope, while the performance of x-ray microscopes resisted improvement． resolution：分辨率。 我的疑惑...