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如何读懂、写出正确的句子？一、 句子成分（主谓宾定状补）二、 时态：1. 一般现在时（描述惯常发生的事情）注意：主语若是第三人称单数，动词需要加s/es ； 其他情况下，动词用原型We start our work at 7 oclock every morning. He leaves the work site at 5 oclock every afternoon. He does his work very well. 2. 现在进行时（描述此刻正在发生的事情）注意：进行时需要用 系动词（am, is , are）+ （动词+ing ）The workers are working on the work site. The electrician is dealing with an electric problem. 3. 一般过去时（描述过去发生的事情）注：过去时中，动词需要用过去式（即 动词+ed）We signed a contract last week. The project started a month ago. 4. 过去进行时（描述过去发生的事情）注意：系动词（was, were）+ (动词ing)They were planning to go abroad for vocation two months ago. 5. 一般将来时（描述未来将要发生的事情）注：将来时，需要在动词前加will，be going to。We will have a meeting with the supplier. We are going to construct a new bridge in Bengal. The project will be complete soon. 6. 现在完成时（描述到目前为止已经发生的事情）注：完成时的基本结构为 have/has + 动词的过去分词（动词+ed）的形式We have run out of food. We have spent 5000 dollars on the car. The meal has been finished. 7. 过去完成时（描述到过去为止已经发生的事情）注：过去完成时的基本结构为had + 动词的过去分词（动词+ed）的形式The professor had finished his job when his students came to see him. 三、 英语五种基本句型基本句型一： （主谓） The workers arrived. 工人们已经到了。The price of materials goes up. 材料价格上涨。基本句型二： （主系表） 主要用语描述“是” ，侧重于表示人或事物状态、性质.All of us are tired. 大家都很累。The welder is responsible. 这个焊工很负责。The problem is hard to deal with. 这个问题很难解决。Your job is to weld parts together. 你的工作是焊接零件。基本句型三： （主谓宾） You must deal with the problem as soon as possible. 你必须尽快解决问题。They weld the pieces of a broken axle. 他们焊接断了的车轴。I need seven engine-drivers. 我需要7个司机。The workers are carrying materials to our job site. 工人们正在把材料运到我们的工地。You should check the work site every week. 你应该每天检查工地。基本句型四： （主谓间宾直宾） The manager handed me a contract. 经理递给我一份合同。I will give you a job. 我将会给你一份工作。The welder showed me his welding skills. 这个焊工向我展示了他的焊接技术。Tell me when you can finish you job. 告诉我你什么时候能完成你的工作。Show me where the problem is. 指出（给我）问题在哪里。基本句型五： （主谓宾宾补）You should keep the welding materials dry. 你们要保持焊接材料干燥。四、 句式变换（陈述句 疑问句）陈述句语序与中文类似，不过表示时间/地点的放在最后，先讲主谓宾等，再说时间地点。1. 玛丽每周日去书店买一本书。2. 我们上周末在一家著名的药店买了点药。疑问句分为一般疑问句（助动词或者be动词开头），及特殊疑问句（疑问词what, when, where, who, how + 可能需要助动词或者be动词）1. Mary goes to the bookshop to buy newspaper every morning. 提问是不是，有没有？ 一般疑问句。借助助动词do does 放句首，后面顺序不动，但动词要还原成原形。 提问其他的部分，都是特殊疑问句，需要加疑问词。 提问marry： who 提问 the newsagents : where does Mary go to 提问every morning: when does 提问 to buy newspaper(目的)：why does 提问goes to ： what does 2. It takes Mike thirty minutes to go to work by car. 提问动词：是否花了这么久？does it 提问thirty minutes: how long does it 提问 by car: how does3. Bill Gates is the richest man in the world. 提问动词： is 提前 后面照抄。 提问 Bill Gates : who is 翻译练习：（先考虑动词是什么，再想句子中是否要用到助动词）1. 你想不想去逛街？ 2. 你想吃买点什么？ 3. 你在哪里买的这条裙子？ 4. 你玩的开不开心？ 5. 他是不是一个开朗的人？
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