高中英语外研版必修1Module 5 A Lesson in a Lab示范课ppt课件

这是一份高中英语外研版必修1Module 5 A Lesson in a Lab示范课ppt课件，共26页。PPT课件主要包含了Module 5，B aim，D method，A result，Passage A，reaction ，react，electrical，heated ，steam等内容，欢迎下载使用。

What can yu see in these pictures?
C. cnclusin
Put these wrds in the crrect rder t describe the stages f a scientific experiment.
Read the passage and chse the best title fr it.
The Different Uses f Metals The Reactin f Metals The Reactin f Metals with Oxygen
The Reactin f Metals
Read the passage again. Answer these questins.
1. Which f the metals in the table reacts the mst with xygen and water? Ptassium, calcium and sdium.2. What happens when yu heat calcium in xygen? It burns t frm an xide.
3. Which metals react with steam? Magnesium, aluminium and zinc.4. Des irn have a slw r fast reactin with steam? It has a slw reactin.5. Des cpper react with water? N, it desn’t.
Cmplete the passage with prper wrds accrding t passage A.Metals are very imprtant, s when using them we shuld knw hw they _____ with different substances. Take irn used in ________ equipment fr example, when ______ in xygen, it will react slwly. When it is put tgether with water r _____, there will be a partial _______.
Read the passage and fill in the table.
Irn des nt rust
1. In the first part f the experiment, the ___ is dry, nt wet.2. It shws that irn ___________ when the air is dry.3. In the secnd part f the experiment, yu must ____ the water t make sure there is n ___ in it.
des nt rust
Read the passage again. Cmplete the sentences.
4. Yu add ________ t the water because this keeps ___ ut f it.5. It shws that ____ des nt rust in water that has n ___ in it.
Cmplete the passage with prper wrds accrding t Passage A and B.
It is hard t think f a wrld withut metals. Different metals have different uses, fr example, irn can be used in ________ equipment. But abve all we shuld knw whether it will ____ under
different cnditins. Otherwise it will keep the equipment frm wrking well. As we all knw, if irn is heated in xygen, it will react slwly but will nt frm an _____.
On the ther hand, if it is put tgether with water r _____, there will be a ______ reactin. Next let’s d an __________ t supprt the abve. First, get a test tube filled with water and put it ver the _____________ t ____ fr three minutes.
Bunsen burner
Then put three r fur clean nails in the water with sme il added t it and leave the tube fr ne week. What happens? The irn des nt ____ in air-free water. Anther experiment, if yu put the nails in the tube with the air in it fr ne week, then what happens? Irn rusts in _______ water.
Which f the fllwing reacts mst easily with steam? A. Ptassium.            B. Irn.       C. Magnesium.          D. Calcium.
Read Passage A (P44) and Passage B (P45) again and chse the best answers.
2. Which f the fllwing reacts least with water? A. Cpper.                  B. Irn.     C. Aluminium.             D. Sdium.3. What can we learn mainly frm Passage B？ A. Hw irn reacts with air.          B. Hw irn is made. C. Hw we can prevent irn frm rusting.  D. Hw irn reacts with steam.
1. When we use metals, it is imprtant t knw hw they react with different substances, fr example, water and xygen. = When we use metals, we shuld knw hw metals react with different substances, fr example, water and xygen, which is very imprtant.
Imprtant sentences
本句是一个复合句，其中when引导时间状语从句；在主句中，it为形式主语，真正的主语是动词不定式短语t knw ... substances，其中hw ... substances为hw引导的宾语从句，作knw的宾语， fr example引出同位语，表示举例。
2. Here is a table with the metals that react mst at the tp, and the metals that react least at the bttm.= A table is here. At the tp f the table we can see the metals that react mst and at the bttm f the table we can see metals that react least.
本句使用了倒装语序。句子的主语是a table，后面的with ... bttm作定语修饰a table；两个that都引导定语从句修饰the metals。
D exercises10-12 n page93.