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问题 选择题

下列关于光现象的说法正确的是（　　）

A．日环食是光的反射现象

B．立竿见影是光的直线传播

C．水中的月亮是光的折射现象

D．筷子好像在水中折断是光的反射现象

答案

A、日环食是由于光沿直线传播形成的．故A错误；

B、立竿见影，是由于光沿直线传播形成的，故B正确；

C、水中的月亮是由于光的反射形成的，故C错误；

D、筷子好像在水中折断是因为光从水中斜射入空气中时，发生折射，故D错误．

故选B．

听力题

单词拼写（10分）

小题1:Is that seat already ___________? (占用)

小题2:Doing morning exercises surely has some _____________（有益的） effects on our health.

小题3:Usually people show great ___________（同情） for the children begging in the streets.

小题4:He was the only w___________(目击者) to that accident.

小题5】He was ___________（遗弃） by his cruel parents when born because of his disability.

小题5:The mountains are __________（反射） in the clear water, forming a pleasant picture.

小题6:You’d better ____________（适合） yourself to the life here as soon as possible.

小题7:Everybody is required to ____________（参加） in the spring outing.

小题8:Follow the doctor’s advice, ____________（否则） you’ll not get better soon.

小题9:The teacher ____________（推荐） the book written by Dickens to his students.
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填空题
用方框中所给单词或短语的适当形式填空，使短文通顺、正确连贯，每个单词或短语限用一次。
can   help   ground    rather than    encourage    by   plant  we   off   unless
      
There are many ways to save the environment if you would like. In this passage, you can find some ways.
Plant more trees. Choose a right 小题1:________ near your house or workplace. 小题2:________ there’s any rule stopping you growing trees in that area, go ahead and grow trees. Plant a tree every month and小题3:________ your friends and classmates to join you. Have more and more trees 小题4:________ and there will come a day when you have green land thanks to your hard work.
Walk more and drive less. Choose to walk 小题5:________ drive your car. Walk or ride a bicycle to work if it’s not very far. Not only cycling but walking is good exercise. And each time you avoid using your car, you’re doing something 小题6:________ to cut down air pollution. You are saving fuel, saving money and keeping fit as well.
Save water. Water is very important for living things. It’s 小题7:________ who use and pollute it. The simplest way to save water is turning 小题8:________ water taps after use. When you visit a beach, make sure that you don’t throw waste around. Do not pollute rivers 小题9:________ dropping garbage or other waste. Water is so precious, so we 小题10:________ waste or pollute it.
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