托福考试语法笔记（9） 1. The American clipper ship era was of duration short， extending from about 1845 to 1859. 答案：B 分析及考点：词序的颠倒，应该改成short duration.只有特殊情况修饰成分后置。 参...

托福考试语法笔记（10） 1. Archaeological and geological excavations indicate which a primitive type of corn was used as food in North America at least 7，000 years ago. 答案：B 分析及考点：连接词误用。宾语从句连...

托福语法：过去完成进行时 A 形式 过去完成进行时是由 had been＋现在分词构成，因此无人称变化： I had/I’d been working they had not/hadn’t been working had you been working？ had you not/hadn’t you...

托福语法：时间从句中一般过去时与过去完成时 A 由when连接的从句 一个过去的动作紧接另一动作时： He called her a liar． 他骂她撒谎。 She smacked his face． 她打了他一个耳光。 可以用w...

英语中有多种方法表示将来。现在把这些形式列举如下，后文中将依照列举的顺序予以讲述。学生应当照这一顺序学习，否则它们之间的关系就不易弄清楚。 （a）一般现在时 （b）wi...

（a）—The phone is ringing． —Ill answer it． —电话铃在响。 —我去接。 （b）Bill（to waiter）：Ill have a steak，please． 比尔（对侍者）：我要牛排。（也可以用would like，参见第201节B。） （...

A 现在进行时可以表示对最近的将来的确定的安排： Im taking an exam in October.阿 我将在10月份参加考试。 这句意指我已报名了。 Bob and Bill are meeting tonight. 鲍勃和比尔今晚要会面。 这句意...

PP Test 1 语法题笔记练习题 1. Most doctors of the Colonial period believed _______ was caused by an imbalance of humors in the body. A. in disease B. that disease C. of disease D. about disease 答案：B 分析：动词believe 的用...

托福语法题练习（二） 6. _________, domesticated grapes grow in clusters, range in color from pale green to black, and contain sugar in varying quantities. A. Their botanical classification as berries B. Although their botanical cl...

托福语法题练习（三） 1. Bubbles， flaws， and other irregularities diffuse the light that passes through stained glass， _________ the glass sparkle. A. which making B. and making C. making D. to making 答案：C分析：空格前...