冀教版九年级上册Unit 5 Look into ScienceLesson 28 The Study of Living Things课堂教学ppt课件

这是一份冀教版九年级上册Unit 5 Look into ScienceLesson 28 The Study of Living Things课堂教学ppt课件，共17页。PPT课件主要包含了New Words，Exercises等内容，欢迎下载使用。

I. Learning aims:
Master the new wrds: bilgy, butterfly, migrate, fantastic, cmpletely, grandchild, female, milkweed, chemical, puzzling
II. Learning imprtant and difficult pints:
bilgy butterflymigrate fantasticcmpletely grandchild female milkweedchemical puzzling
What d yu d?
1.Put eight spnfuls f crnstarch int the fur t five spnfuls f the crnstarch and water the mud int yur and clse yur hand.
What is happening?
Sme things disslve in water. Sugar disslves in water. Salt disslves in water. But nt crnstarch. It nly mixes with water. When yu clse yur hand and press, sme f the water gets ut. The mud becmes slid. When yu pen yur hand, the water mixes in again. Nw it is a liquid!
What else can yu d?
Put sme f the mud in a bwl. Nw hit the mud with yur pen hand. What happens? Nw d the same thing with water. Are the mud and water the same when yu hit them?
Language Pints
作形容词，意为“奇异的、极好的、了不起的”，在句中作定语或表语。如：
I think this is a fantastic inventin. 我想这是一个了不起的发明。
作可数名词，意为“化学物质、化学制品”，复数形式是chemicals。如：
There are n chemicals in this kind f fd. 这种食品中没有化学物质。
2. chemical
作形容词，意为“化学的、化学作用的”，在句中作表语或定语。如：
We can find chemical additives in many fds. 我们在很多食品中发现了化学添加剂。
句中的have been drawing 是现在完成进行时，它由“助动词 have (has) + been + 现在分词”构成，当主语是第三人称单数时用助动词has，其他情况用助动词have。现在完成进行时主要表示从过去开始一直持续到现在的动作，这个动作是否延续下去，要根据上下文而定。
3. Fantastic facts abut the butterfly have been drawing Dr. Taylr’s attentin.
它往往与表示一段时间的时间状语连用，如：all the time, this mnth, all day, these few days, fr a year, since a week ag等。
She has been playing basketball after schl this week. 这个星期她放学后一直打篮球。Tny has been drawing in his bedrm all the afternn. 托尼在卧室画了一下午。
连词bth…and…的意思是“……和……都，既……也……”，它可以连接句中句子成分相同的词语，如果用它连接主语时，谓语动词要用复数形式。
Bth Li Ping and her mther take exercise every mrning. 李萍和她妈妈每天早晨都进行锻炼。
4. This is bth puzzling and interesting fr many scientists.
1. They gave us sme gd _____________ (suggest) n ur wrk.2. In rder t get better _______________ (educate), she went t study in Beijing.3. Wh is the ____________ (design) f this new machine?4. He was ______________ (cmplete) wrng this time.5. My mther tk sme ____________ (freeze) meat frm the fridge.
I.用括号中所给词语的适当形式填空。
1. The teacher tld me t pay attentin ______ my prnunciatin.2. We are getting ready ______ the wrk. Can we start nw?3. Dr. Lee is interested ______ studying the life f butterflies.4. I fund a lt f useful infrmatin after lking ______ the Internet.5. Yu must put mre effrt ______ yur wrk if yu want t succeed.
II.用适当的介词填空。