17.Gina stood quietly on the left side of the stage.She wore a new pink dress.Her dancing shoes were bright and shining.(81)DShe was ready.
The music started to play.It was nearly time for her to move onto the stage.She looked quickly and secretly at the hall.The seats were all full.(82)CAll were looking at the stage and listening to the music.She could feel the excitement in the air.They had come to see her perform.
Suddenly Gina began to feel nervous.(83)AHer breathing was fast and she felt like she was unable to move.She dried her sweaty hands on her dress.Her knees began to shake and she felt weak.She was not sure that she could do this after all.
(84)EThey were both smiling and looked so excited.Gina thought of all the long hours she had worked on her dancing and the many times her parents had waited while she practiced.She moved her foot slightly.She could feel the pain on her feet.It was from all those times of doing the same dance steps over and over again.Her body still ached from the hours of training.She had cried often when things got really difficult,but she had never given up her dream to perform on stage.
One more look at her parents,and she realized they were nervous for her too.Gina breathed deeply and stood up tall.(85)FIt was time.She pointed a foot and moved gently onto the stage.She forgot her nerves and her fear.This was where she belonged-dancing on stage!

A.Her heart beat fast.
B.She was very excited.
C.She saw so many faces.
D.Her hair was tied up neatly.
E.She looked again and saw her parents.
F.The music was calling her to come onto that stage.
11.You can be proud of yourselves,even if you can only make one or two of these green changes.The goal here is to limit carbon dioxide and other greenhouse gases,which are closely connected to the big problem of global-warming(全球变暖).
WAY 1:Bring your own cup to Starbucks.You'll get a 10-cent discount,and it's one less paper cup to end up in a dustbin.The store won't create more waste when they throw away a cup.
WAY 2:Turn off your computer.When in standby mode,your PC is still using energy.Turning off a monitor(显示器) for 40hours a week may only save $ 5a month,but it reduces CO2by 750pounds.
WAY 3:Reuse plastic bags.Instead of throwing away 100billion plastic bags a year,try and get a second,third,or tenth use out of them.Better yet,next time you shop,try a reusable bag.The amount of oil it would take to make just 14plastic bags would run your car for one mile.
WAY 4:Use recycled paper in the bathroom.Most of the toilet paper we use is made from trees found in forests.If every family replaced(替换) one roll of toilet paper with a recycled one,424,000trees would still be standing.
WAY5:Plant a tree.Adding green to your garden is beautiful and earth-pleasing.Just one tree will help make cleaner air and save the environment from 5,000pounds of hot carbon dioxide each year.
51.How many ways are mentioned(提及) in the passage?D
A.Two.
B.Three.
C.Four.
D.Five.
52.What will happen if our PC is turned off when it isn't in use?B
A.It will help to save a large amount of money.
B.It will help to reduce a great deal of CO₂.
C.It will save the amount of oil that runs your car for a mile.
D.It will be like planting 1.7million areas of new trees.
53.Which ways suggest recycling or reusing of things?A
A.Ways 3 & 4.
B.Ways 2 & 3.
C.Ways 3 & 5.
D.Ways 2 & 4.
54.How do these ways do good to our environment?C
A.They all help reduce the use of energy like electricity.
B.They all cut down the number of the use of paper.
C.They all produce less greenhouse gases as a result.
D.They all help protect our trees and forests.
55.What is the best title for the passage?B
A.Ways toSave Money
B.Ways to Be Earth-Friendly
C.Ways to End Global-Warming
D.Ways to Limit Carbon Dioxide.
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