课堂导学
文本感知
ⅰ.
passage a
1.the first sentence “it is hard to think of a world without metals.” will make us think ______.
a.metals make up the world
b.metals play a greatly important role in the world
c.there would be no world if there were no metals
d.it is difficult for us to live in the world of metals
答案：b
2.the table in the passage is arranged in order of ______.
a.metal kinds
b.reaction activity
c.values of metal
d.the first letter of the words
答案：b
3.an oxide is ______.
a.a new kind of metals
b.a kind of gases
c.a product of reaction
d.a factor of chemical reaction
答案：c
4.the main idea of this passage is about ______.
a.various uses of metals
b.the importance of metals
c.the reaction of metals
d.how to tell metals apart
答案：c
5.according to the table,which metal is most suitable to make our daily kitchenware?
a.zinc.
b.iron.
c.copper.
d.magnesium.
答案:c
passage b
1.which is not the apparatus that is required in the experiment of “iron in dry air”?
a.cotton wool.
b.oil.
c.iron nails.
d.test tube holder.
答案：b
2.which is required as one of the apparatus in the experiment of “iron in ordinary water”?
a.oil.
b.cotton.
c.bunsen burner.
d.test tube holder.
答案：d
3.the purpose of this experiment is ______.
a.to find out how iron reacts with water and air
b.to find out how important iron is
c.to find out how to do the experiment of iron’s reaction with water and air
d.to find out how to keep iron rustless
答案:d
ⅱ.cultural corner
1.when did mark kendon begin to feel interested in science?
a.after he listened to a science lecture.
b.after he heard about nobel prize.
c.after he changed to a new school.
d.after he did an experiement in the lab.
答案：c
2.who do you think played an important part in making mark kendon interested in science?
a.his parents.
b.the lectures.
c.nobel prize winners.
d.his chemistry teacher.
答案：d
3.it seems that mark kendon used to love______ classes.
a.language
b.chemistry
c.physics
d.art
答案：a
4.we can see mark kendon’s parents ______,when he was determined to go to ottawa university.
a.were greatly surprised
b.were very proud
c.supported him
d.disliked it
答案：a
5.the best title of this passage is ______.
a.what a surprise
b.science teaching of my new school
c.science,my new interest!
d.how to study science
答案:c
难句透视
1.it is hard to think of a world without metals.
很难想像一个没有金属的世界。
剖析:it是形式主语,真正的主语是to think of...,without metals是表示条件的一个介词短语,作后置定语修饰world。