题目内容
20．The speech contest I have devoted much time to ______ tomorrow．（ ）| A． | will hold | B． | will be held | C． | holding | D． | being held |
分析 我投入很多时间的演讲比赛明天将会举行．
解答 答案：B．I have devoted much time to是定语从句，修饰前面的The speech contest，The speech contest是动词hold的承受者，结合tomorrow故用一般将来时的被动语态will+be+过去分词，故答案是B．
点评 一般将来时表示将来某一时刻的动作或状态，或将来某一段时间内经常的动作或状态．常常和表示将来的时间状语连用．如：tomorrow（明天），next week（下周 ）；in the future（将来）等． 一般将来时由助动词shall（第一人称），will（第二、三人称） 动词原形构成．美式英语则不管什么人称，一律用will．或用主语+be动词+going to 动词．
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16．I don't have _________ to finish the work，because I'm not _________．（ ）
| A． | enough energy，healthy enough | B． | enough energy，enough healthy | ||
| C． | energy enough，healthily enough | D． | energy enough，enough healthy |
15．-When he to our school？
-About half an hour ago．（ ）
-About half an hour ago．（ ）
| A． | does，come | B． | did，come | C． | did，came | D． | does，came |
10．We call Earth our"mother planet"．Have you thought of appreciating nature and learning to protect it like we love our mother？If you never have，then Earth Day is good timing．
April 22marks the 45th World Earth Day，a day for us to celebrate Earth．This year，the theme of the day is"It's our turn to lead"．It aims to push global leaders to take action on climate change．
Climate change is an important and lasting change of climate．Global warming has become the worst problem about climate．It makes sea levels rise．If sea levels carry on rising，some places may disappear under water in just a few dozen years．It may also cause other problems，such as the extinction of certain kinds of animals．
Many believe that global warming is caused by human activities：car exhaust emissions（尾气），burning of coal by factories and cutting down of trees．
Can we do anything about it？Sure．Everybody can do a little bit to protect Mother Earth．Here are some suggestions：
Change bulbs．
People produce electricity by using natural resources．So it helps to turn off lights，the television，and the computer when you stop using them．You can also ask your parents to change the light bulbs in your home to compact fluorescent light bulbs（节能灯泡）．
Bike or walk to school．
Do you go to school by bus or by bike？If you bike，you are doing something good for Earth．If you live near your school，you can simply walk to school to save energy．
Wash the green way．
Do you help wash clothes at home？Then wash them in an energy-saving way．Never start your washing machine unless it is full of clothes．Dry your clothes the natural way by hanging them on a line rather than putting them in a dryer．
April 22marks the 45th World Earth Day，a day for us to celebrate Earth．This year，the theme of the day is"It's our turn to lead"．It aims to push global leaders to take action on climate change．
Climate change is an important and lasting change of climate．Global warming has become the worst problem about climate．It makes sea levels rise．If sea levels carry on rising，some places may disappear under water in just a few dozen years．It may also cause other problems，such as the extinction of certain kinds of animals．
Many believe that global warming is caused by human activities：car exhaust emissions（尾气），burning of coal by factories and cutting down of trees．
Can we do anything about it？Sure．Everybody can do a little bit to protect Mother Earth．Here are some suggestions：
Change bulbs．
People produce electricity by using natural resources．So it helps to turn off lights，the television，and the computer when you stop using them．You can also ask your parents to change the light bulbs in your home to compact fluorescent light bulbs（节能灯泡）．
Bike or walk to school．
Do you go to school by bus or by bike？If you bike，you are doing something good for Earth．If you live near your school，you can simply walk to school to save energy．
Wash the green way．
Do you help wash clothes at home？Then wash them in an energy-saving way．Never start your washing machine unless it is full of clothes．Dry your clothes the natural way by hanging them on a line rather than putting them in a dryer．
| Passage outline | Supporting details |
| The 45th World Earth Day | The theme of the day is"It's our turn to lead"．Its aim is to push global leaders to take action．Global warming is a problem （81）which is worse than any others about climate． |
| Problems of global warming | •Sea levels （82）carry on rising． •Certain kinds of animals become extinct． |
| （83）Reasons of global warming | •Car exhaust emissions． •Burning of coal by factories． •Cutting down of trees． |
| Suggestions to protect Earth | •Change the light bulbs in your home to compact fluorescent light ones． •Bike or walk to school． •Don't start your washing machine （84）unless it is not full．And let the clothes dry （85）by hanging them on a line． |