Unit 10 The world around us

4. which is not true according to the passage?_____
　　a. americans may run short of water in the future.
　　b. americans use more water than ever.
　　c. americans use as much water as they used to.
　　d. the more things americans like to have, the more water is needed.
5. what is the author’s opinion?_____
　　a. americans don’t have enough water.
　　b. americans don’t use enough water.
　　c. americans like to use water.
　　d. americans use too much water.
              　　　　　　　　　　　b. air pollution
　　air pollution is caused by many things. great clouds of smoke come from factories. cars send smoke and fumes (煙、廢氣) into the air .burning waste fills the air with bits of dirt. even burning leaves add smoke to the air. sometimes, planes cannot find their landing spots through smoke. smoke of all kinds is bad to breathe and can do great harm to the body.
　　still, we cannot live without air. we must find a way to clean the air we have.
　　in time, we may have factories that are run by atomic energy (原子能).our cars may run on smoke-free electric power (無煙的電能).scientists are also working on new ways to help the oil burned by cars from making fumes. waste may be burned in the sand on ocean floors.
　　these changes might keep our air clean in the years to come. but until then, many
scientists are looking for ways to make air cleaner now.
6.on the whole, this passage is about____.
　　a. dirty air b. electric power
　　c. atomic energy d. burning waste
7.air pollution is caused by____.
　　a. factories and clouds b. cars and oil
　　c. smoke and fumes d. waste burned on ocean floors
8.the story does not say so, but it makes you think that .
　　a. stopping air pollution is hard
　　b. dirty air is blown away by the wind
　　c. planes cannot fly through smoke
　　d. it is impossible to make dirty air cleaner
9.scientists are now working on ways to____.
　　a. keep planes from flying
　　b. bury sand on ocean floors
　　c. stop air pollution
　　d. burn leaves without smoke
10.why would electric cars cut down on air pollution?
　　a. they go only a short way.
　　b. they are easier to keep clean.
　　c. electric power has no smoke.
　　d. electric cars need no energy.
iv. 書面表達
　　認真閱讀下列對話，請轉述父子談話的主要內容，要求不要句對句的重復，只要把主要意思表達出來
即可。
　　tom: good morning, dad. would you mind helping me?
　　mr. black: what’s it, tom?
　　tom: could you lend me five pounds?