名词性从句中whether/if的用法as though的用法知识点
摘要: 名词性从句中whether/if的用法asthough的用法知识点whether/if的用法whether/if都意为“是否”。一般情况下，它们可以互......
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名词性从句中whether/if的用法as though的用法知识点 whether/if的用法 whether/if都意为“是否”。一般情况下，它们可以互换，口语中常用if，但以下情况中，只能用whether。 (1) 与or not紧接连用时。如： Let me knoW whether or not you can come． 请让我知道你是否能来。 (2) 作介词的宾语从句时。如： We are interested in whether you will attend the meeting． 我们对你是否参加会议感兴趣。 (3) if不能引导主语从句。 (4) 形式主语it替代主语从句。常见的it替代主语从句的句式主要有以下几种： ① It+系动词+形容词+that从句。如： It is quite clear that the whole project is doomed to failure． 很清楚，整个计划注定要失败。 ② It+系动词+名词+that从句。如：It is our hope that the two sides will work towards peace． 我们的希望是双方能朝着和平的方向发展。 ③ It+be+v．ed形式+that从句。如： It is announced that the plan has been successfully carried out． 据宣布计划已经顺利实施。 as/as if/as though (1) as/as if/as though引导的表语从句常跟在特定动词后面， 如seem，appear，look，taste，sound，feel等。如： ① It sounds as if someone is knocking at the door．听上去好像有人在敲门。 ② At that time，it seemed as though I couldn’t think of the right word．当时我似乎怎么也想不出一个恰当的字眼来。 (2) 当主句的主语是reason时，表语从句一般由that引导，这种用法常见于句型The reason why…is that…。如：The reason why he came late was that he got up late．他来得晚是因为起床晚了。 Learning another language isn't easy, but most people can learn a second language well if they’re willing to put in the necessary time. Here are some practical suggestions for studying effectively, overcoming anxiety, and learning the grammar and skills necessary for success in foreign language classes. ___ 1__ _Language learning is cumulative(积累): you cannot put it off until the weekend. ___ 2__ _ Distribute(分配) your study time in 15 to 30 minutes period throughout the day Study a different task each time: vocabulary now, grammar next, etc, Get an overview during half hour: spend 10 minutes reviewing dialog, 10 minutes learning new vocabulary, 10 minutes learning new grammar…___ 3__ _ About 80% of your study time should be spent on recitation(背诵)or practice. Attend and participate in every class-even if you aren't well prepared ___ 4__ _ Learn the grammar and vocabulary outside of class in order to make full use of the class time. Spend a few minutes “warming up” before each class by speaking or reading the language. Make yourself comfortable in the classroom Get to know your classmates, so you'll feel you're among friends. Visit your teacher during office time to get acquainted(熟悉的) : explain your goals and fears about the course to your teacher. Learn grammar if you don't already know it Grammar is the skeleton(骨架) and the basic structure of a language, and you must learn it. Practice for tests by doing what you'll have to do on the test If the test will require you to write, then study by writing including spelling and accents. ___ 5__ _ Ask for practice questions and make up your own test questions. Try to invent changes on patterns and forms over learning is also required in tests preparation: study beyond the paints of recognition to mastery. Develop a good attitude Have a clear personal reason for taking the class. Set personal goals for what you want to learn. Leave perfectionism at the door; give yourself permission to make mistakes and learn from them. A. Study every day. B. Review lessons separately. C. Have more practice in listening. D. So you'll at least have looked at it all. E. If you're asked to listen, practice listening. F. Class time is your best opportunity 1o practice. G. Study one or two hours for every class hour if you want a good mark. 
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