初三英语上册知识点4篇
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仁爱版英语九年级上册知识【第一篇】
I. 重点词组
1、 as a result 结果
2、 here and there 到处
3、 in the beginning 一开始
4、 in danger 处于危险中
5、 cut down 砍倒
6、 change sth. into sth. 把……变成……
7、 prevent from 防止
8、 greenhouse effect 温室效应
9、 refer to 提到
with 处理
off 中断
II. 重点句型
1、 As we know, none of us likes pollution.众所周知,没有人喜欢污染。
2、 Humans have come to realize the important of protecting animals.人类逐渐意识到保护动物的重要性。
3、 Trees can also stop the wind blowing the earth away.树木也能防风固土。
4、 Cutting down trees is harmful to human beings, animals and plants.砍伐树木对人类、动植物都有害。
5、 Some things we’ve done are very good for earth while some are not good.
我们所做的, 有些对地球很好,而有些不利。
6、 They can also prevent the water from washing the earth away.它们也能阻止水土流失。
7、 When it rains or when the wind blows, the earth is taken away.天一下雨或刮风, 土就会被冲走或刮走。
III. 语法
不定代词:
1、 定义: 指的是那些不指明代替任何特定名词或形容词的代词。
2、 用法: 在句中可作主语、宾语、表语、定语等。something , somebody, anything, anybody等作主语时,通常视为单数。当形容词修饰它们时,要放在其后。
But the government has done something useful to protect the environment.
初三英语上册知识点汇总【第二篇】
初三英语上册知识点包括以下几个方面:
1.动词不定式:不定式是一种非限定性动词,由to+动词原形构成,在句中可以作句子除谓语之外的任何句子成分。
2.宾语从句:在复合句中,由一个句子充当宾语,这个句子叫做宾语从句。常见的宾语从句引导词包括that、if、whether、what、who、where、why和how等。
3.语法复习:包括动词的时态和语态、情态动词、形容词和副词的比较级和最高级等。
4.词汇复习:包括名词、代词、数词、介词、连词、动词、形容词和副词等。
5.阅读理解:包括短文阅读和长篇阅读,以及听力理解。
6.写作复习:包括写作技巧、写作实践和写作范文等。
为了更好地掌握初三英语上册知识点,建议进行系统的学习和练习,例如参加课程、做题、阅读相关书籍和听讲座等。同时,可以与老师或同学交流讨论,及时发现自己的不足之处并加以改进。
九年级英语上学期知识点【第三篇】
动词不定式作宾语
后面能接不定式作宾语的动词有:agree, ask, choose, decide, forget, hope, learn, want, wish, would like等。
1、We hope to get there before dark. 我们希望天黑以前到那儿。
2、The man decided to do it herself. 那个男人决定自己做那件事。
动词不定式作宾语的注意事项(2点)
1. 有些动词既可跟不定式作宾语,也可跟动名词作宾语,但含义不同:
remember to do 记住要做某事
remember doing 记得曾经做过某事
forget to do忘记要做某事
forget doing 忘记曾经做过某事
stop to do 停下来去做某事
stop doing 停止做某事
go on to do 继续做另一件事
go on doing 继续做原来在做的事
2. 不定式作宾语时,如带有宾语补足语,则要把不定式放到后面,用it作形式宾语,构成“主语+动词+it+宾补(形容词、名词)+不定式”结构。
如:He found it very difficult to get to sleep.他发现很难入睡。
初三上学期英语知识点【第四篇】
所谓垂悬结构(The Dangling Construction)就是一个句子成分,如分词短语,不定式动词短语等,找不到被修饰的主语或被修饰的对象不合逻辑。垂悬结构是种错误的。句法,应该避免。
下面是三种常见的垂悬结构及其改正方法:
⒈垂悬分词或分词短语,如:
① Climbing up the hill, several boars were seen.
这句子里的现在分词短语(present participial phrase)修饰主语“several boars”是错的;改正方法有二:
(a)确定是逻辑主语,使句子变成“Climbing up the hill, the explorers saw several boars.”
(b)把现在分词短语扩大为副词分句(也称状语从句):“When the explorers climbed up the hill, they saw several boars/ several boars were seen.”
⒉垂悬副词短语,如:
② After putting a shrimp on the hook, the fish began to bite.
这句的副词短语(adverb phrase)和主语“the fish”有什么逻辑关系呢?真正的逻辑主语应该是“the fisherman”或“the angler”才对。改正方法和例①同:
(a) After putting a shrimp on the hook, the fisherman found that the fish began to bite.
(b) After the fisherman had put a shrimp on the hook, the fish began to bite.
⒊垂悬不定式动词短语,如:
③ To write well, a lot of practice is needed.
④ To be a loyal employee, a sense of belonging is a must.
这两个句子的不定式动词短语(infinitive phrases)并不能修饰“practice”和“a sense of belonging”,真正的主语必须是“ 人”,如:
(a) To write well, one needs a lot of practice/a person has to practise a lot.
(b) To be a loyal employee, he or she must have a sense of belonging.
上述三类垂悬结构中,第一类发生的频率最高,必须注意。但是在下列三种情况下,分词短语是对的,它们并非垂悬结构:
第一,独立结构(The Absolute Construction,见3月7日《中英合谈》)中的分词短语有自己的主语,所以不是垂悬结构。例如:
① Such being the case, we can go home now./……it is not wrong to call it a day.
第二,当分词含有介词或连词性质时,它不需要逻辑主语,所以没有垂悬问题存在。例如:
② Owing to a lack of funds, the project has to be discontinued.
③ Provided that there is sufficient time, everyone can do the job better.
第三,当分词短语是用来表示说话者的态度或意见时,也不需要逻辑主语,因此也不存在着垂悬问题。例如:
④ Judging from his facial look, the news must have been terrible.
⑤ Taken as a whole, there is nothing wrong with the logic behind that idea.