过去时（simple past tense)表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去

面的句子翻译成英文 1．你曾经吃过鱼和薯条吗？           2. 我刚刚丢了我的化学书。     3. 我以前从来没去过那个农场。       4. 他已经吃过午饭             5. 你已经看过这部电影了吗？         6. 我哥哥还没回来。   7.这本字典我已买了三年了。         8.他离开中国三年了。           9.我认识他们五年了。               10.他们已时表示过去去了美国五年了。   11.自从他搬到济宁，他就住这儿了。   12.我妹妹成为一个大学生已经三年。   13.自从1999年以来他们就认识。 14.我来到这个学校已3年多了。 参考答案： 1. Have you ever had / eaten fish and chips? 2. I have just lost my chemistry book. 3. I have never been to the farm before.   4. He has already had lunch  =  He has had lunch already. 5. Have you seen the movie yet? 6. My brother hasn’t  come /get / been back yet  =  My brother hasn’t  returned yet. 7. I have had this dictionary for three years / since three years ago. 8. Has been away from China for three years. 9. I have known them for five years.   10. They have been in the USA for five years.  11. He has been here since he moved to Jining.   12. My sister has been a college student for three years = My sister has   been in college for three years.   13. They have known each other since 1999.   14. I have been in this school for over three years. 好了，以上就是｜英语现在完成时巩固练习题14｜的练习，大家都对了几道呢？这部分的练习题是初学语法同学的一个难点，这类题主要考查的是时态用法：同学们在做这类题型时一定要弄清时态，另外大家在做题时不要投机取巧。若是有做错的题不妨把错题多看几遍，结合笔记再巩固下，希望同学们加强对英语语法的练习，在选择时结合前后文仔细辨别。最后，祝大家英语考试取得理想的成绩。

接在动词后+ed，不规则变化需要单独记忆。 下面我们来看个例句： I learned English when I was young. 我年轻的时候学过英语。 这过去时表示过去句话是个时间状语从句，主句是过去的动作，从句是过去的状态。 再看个例句： He often went fishing when he was a child. 他小时候经常去钓鱼。 这里went是go的过去式，这是个不规则变化。关于常见动词的不规则变化，后面我们会总结给大家。 今天主要给大家讲了一般过去时的两种构成，不知道大家学会了多少?不要觉得它们很简单，每天学习几分钟由浅入深地帮助大家打好英语基础。还想了解哪些英语知识不妨来这里告诉我们，这里的课程将会让大家找到另一种学习的体验。

时表示过去

英语的过去完成进行时表示表示一个持续到过去某时的动作。这个是大家在中学时期就知道的，今天，小编为同学们带来了相当丰富的与英语过去完成进行时的相关语法，一起来看看吧！   过去完成进过去完成进行时表示表示一个持续到过去行时（Past Perfect Progressive Tense） 如果我们要强调较早发生事件的连续性，我们可以用过去完成进行式。占去完成进行式和现在进行式惟一不同的地方是 verb to have 的地方一定要用had 。 以下是一些过去完成进行式的例子： 1. I had been watching TV before you called me. 2. I had been working hard in a company for many years before I went to college. 3. He had been studying before he went to class. 4. He had been driving all day before he went to sleep.   自测小练习： I.完成句子 1.She ____ _____ _____ _____ _____ _____ ______ (一直患重感冒) when she took the exam. 2.I _____ _____ _____ _____ (一直在寻找) it for days before I found it. 3.He _____ _____ _____ (多次提到) your name to me. 4.I _____ _____ _____ _____ _____ _____ _____ _____ (刚看了几分钟) when he came in. 5.The doctor asked what he _____ _____ _____ (一直在吃).   II.单项填空 1.It was midnight and he was tired because he ____ since dawn. A. was working B. has worked C. had been working D. has been working 2. His brother was good at playing table tennis. He ____ it since he was ten. A. had played B. played C. had been playing D. was playing 3. –Why, Jack, you look so tired!   --Well, I _____ the house and I must finish the work tomorrow. A. was painting B. will be painting C. have painted D. have been painting 4. The manager was worried about the press conference his assistant ____ in his place but, luckily, everything was going on smoothly. A. gave B. gives C. was giving D. had given 5. I wasn’t sure if he was really interested or if he ____ polite. A. was just being B. will just be C. had just been D. would just be 6. The boy was delighted with his new storybook which he ____ for a long time. A. was wanting B. has wanted C. had been standing D. had been wanting 7. The man ____ there in the sun for a long time and got his face burnt. A. has stood B. was standing C. had been standing D. is standing 8. He said that he ____ the novel and had not finished it yet. A. is writing B. has written C. writes D. had been writing 9.—Was your journey to Mountain Emei pleasant last summer?   -- No, it ____ for five days when we arrived, so the roads were very muddy. A. was raining B. has rained C. had been raining D. has been raining 10. Not until then did people know that he ____ important military information to the enemy for a long time. A. sold B. would sell C. had sold D. had been selling   怎么样，看完了小编给大家准备的语法知识，有没有感觉收获颇多呢？喜欢就收藏起来吧~

时表示过去

动词一般过去式的构成 a.规则动词过去式的变化可速过去式的构成 a.规则动词过去记为直、去、双、改四字诀。 　　①一般情况下在动词原形后直接加-ed。如：wanted，played。 　　②以不发音的字母e结尾的动词，去掉e再加-ed。如：hoped，lived。 　　③重读闭音节单词需双写最后一个辅音字母再加-ed。如：stopped。 　　④以辅音字母+y结尾的动词变y为i，再加-ed。如：studied，worried。 　　规则动词过去式的读音也有规律可循。      请记住：清后[t]，元浊[d]，[t] [d]之后读[Id]。 　　①清辅音[p] [k] [f] [s] [F] [tF]等后，ed要读[t

本是关于谈话的一方或双方说了什么、所处状态、做某事的原因何在、结果如何、或一方建议另一方去做什么等等，所以在听的时候要有所侧重。 　　第二，B节还是三段短文，每段之后有三到四个问题。因为文章较长，涉及的信息较多，相对来说难度较大。而我们能够读取的信息还是只有选项，因此提前阅读选项、从中寻找线索就更为重要。尤其是在紧张时往往只听到只言片语，那么选项中的低端逻辑干扰也会难以分辨。如，有两个选项意思明显相近，那么这两个选项往往均不是答案;再如，有的选项明显包含另一个选项的含义，那么该选项往往不为答案。另外，有些陌生的专有名词并不影响解题的，不必纠结，以免贻误更多有用信息的获得。在这部分中，要在听的过程中适当做些笔记，关于时间、地点、人物等关键信息。 　　第三，C节变为填空后仍然是听三遍录音，所以第一遍以尽量听懂大意为主要目标。第二遍时主要完成这十个空，最后一遍查缺补漏，处理之前没听准或完全没线索的部分。取消了对整个句子的听写后，可以使考生更加集中精力关注填空位置前后所缺的成分结构，所以同样可以提前有所判断。 　　以上就是小编给大家分享的英语四级听力复习方法，希望可以给大家在备考的过程中带来帮助。

练习题的英文： ses; problems of an exercise参考例句： The exercise is that difficult! 练习题那么难！ When you' ve copied down the exercise that' s on the blackboard, we' ll go on with the next one 等你们抄好黑板上的这道练习题，我们继续做下一道练习。exercises是什么意思： n. 1.[C,U]运动，锻炼 2.[C]练习，习题 3.[C]【军】演习，操练 4.（特定的）活动，行动(+in) 5.（权力，权利

1. 145 300 610 1230 In the above sequence every term after the first is formed by multiplying by x and then adding y, where x and y are positive integers. What is the value of x + y? 2. A confectioner has 500 mint, 500 orange and 500 strawberry flavored sweets. He wishes to make packets containing 10 mint, 5 orange and 5 strawberry sweets. What is the maximum number of packets of this type he can make? 3. If S is the sum of 8,6,4,2 and x, what must be the value of x for x to equal 1/5 S ? 4. 25 per cent of 600 is equal to 15 per cent of what number? 5. What is the maximum number of points of intersection of four distinct lines in a plane? 6. If one edge of a 6-inch ruler is to be marked in 1/10 inch units, how many marks will there be on the edge including the 0 and 6 inch marks? 7. Given that the sum of the odd integers from 1 to 99 inclusive is 2500, what is the sum of the even integers from 2 to 100 inclusive? 以上就是这7道SAT数学运算题练习题的全部内容，包括代数和几何两个部分的内容。大家在备考SAT数学运算题的时候，可以练习一下这些题目，以便更好的了解SAT数学运算题的解题过程和解题方法。