人教版 (2019)必修 第三册Unit 4 Space Exploration备课课件ppt

这是一份人教版 (2019)必修 第三册Unit 4 Space Exploration备课课件ppt，共20页。PPT课件主要包含了语法填空，考点追击，to eat，to get ，不定式作状语，语法精讲，To be，to find ，to hear 等内容，欢迎下载使用。
不定式及其短语作定语，一般都放在被修饰的词之后，通常表示一个将来的动作，有时也可以表示某一过去的特定动作。
例：1. I’d like t have a few bks t read during the trip. 我想有几本书在旅途中阅读。 2. The questin t be discussed at the meeting is very imprtant. 将在会议上讨论的那个问题非常重要。
例：1. He is always the first t arrive at the schl and the last t leave. 他总是第一个到校，最后一个离校。 2. Wmen and children were the first t get int the lifebats.  妇女和儿童是第一批上救生艇的人。
例：1. The ability t express an idea is as imprtant as the idea itself. 表达观点的能力与观点本身同等重要。 2. I was disappinted at his refusal t attend the pening ceremny. 我对他拒绝参加开幕式感到很失望。
作定语的不定式如果是不及物动词，或者不定式所修饰的名词或代词是不定式动作的地点、工具等，不定式后面须有相应的介词。
例：1. The Brwns have a cmfrtable huse t live in. 　 2. Here is sme paper fr yu t write n. 
1. Culd yu give us smething (eat)? We are very hungry.
解析：不定式作定语置于被修饰的词后面，与所修饰的词之间为动宾关系，表示将来的动作。
2. In my family, my mther is always the first ne (get) up.
解析：中心词被序数词the first修饰，且get与中心词之间为逻辑上的主谓关系，用不定式作定语。
3. Let’s find a clean rm t put ur luggage .
解析：不定式在句中作定语，修饰rm，put为不及物动词，后面要加介词。构成短语put sth. in smewhere。
动词不定式在句中作状语, 主要用来修饰动词和形容词, 也可用来修饰副词。
在句中, 不定式可作目的状语、结果状语、原因状语、方式状语等。
含义为“为了”，可以单独放在句首、句中或句末；如果强调目的性，不定式前也可加in rder或s as。
例： 1. T pass the cllege entrance exam, we must wrk hard. 2. He prmised t make all effrts in rder t/s as t help us.
常表示令人意外的结果，通常放在句末。
例：1. He wke up t find himself alne in the huse. 2. He went back hme, nly t find his huse had been brken int.
①常用结构：主语(人)＋系动词＋形容词/过去分词＋t d
例：We were astnished t find the temple still in its riginal cnditin.
说明产生这种情绪的原因
②常用结构：主语(物)＋系动词＋形容词＋t d
例：The mrning air is s gd t breathe that he gets up early every day.
例：1. He pened his muth as if t say smething. 2. She lifts his hand as if t lead him smewhere.
1. (be) a winner, yu need t give all yu have and try yur best.
解析：句意：要想获胜，你必面要倾其所有，全力以赴。不定式位于句首作目的状语。
2. I arrived at the shp nly (find) I’d left all my mney at hme.
解析：不定式表示意料之外的结果，和nly连用。
3. He felt nly t pleased (hear) frm yu further.
解析：不定式在句中作原因状语，用于结构：主语(人)＋系动词＋形容词/过去分词＋t d。