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1、北师大选择性必修第一册UNIT 3课文重难点过关lesson1.单句语法填空1An unhappy home environment can _(effect) a childs behaviour.2The shop sells _(vary) of toys that attract lots of children.3The number of the workers in that factory is _ the decrease.4The government has been playing _ important role in improving peoples life.5
2、That style of music is dying _ because few young people are willing to learn it.6When passing by，we saw some hunters _(hunt) wild animals without mercy.7The managing director was blamed _ the accident，although it was not really his fault.8The young man risked _(knock) down to take the child on the r
3、oad to safety.9What should be done to punish people who do harm to the _(endanger) animals? 10She was about to cry out when she heard her father _(urgent) telling her to keep quiet.1.affect 2 varieties 3 on 4 an 5 out 6 hunting 7 for 8 being knocked 9 endangered 10 urgently.完成句子11 媒体在影响舆论方面发挥着重要作用。
4、_12 他决定离开学校有各种各样的原因。_13 是露西而不是你应该为这次事故负责。_14 受他的故事影响很大，我决心做一名志愿者。 _15 我感觉这头熊是我的两倍重。_11The media play a major role in influencing peoples opinions.12There were varied reasons why he decided to leave school.13It is Lucy rather than you who is to blame for the accident.14Much affected by the story of h
5、im，I am determined to be a volunteer worker.15I felt the bear is twice heavier than/twice as heavy as me.经典句式1双重否定虽然物种的自然灭绝并不罕见，但现在灭绝的速度让人担忧。 _2how引导感叹句2015年，美国布朗大学和杜克大学的科学家们进行了一项研究，研究了自然原因(即“背景灭绝率”)导致物种灭绝的速度。 _3倍数表达法他们发现人类活动导致物种灭绝的速度比正常情况快1 000倍。_4it作形式主语很明显，人类活动对地球上所有其他物种，包括动物和植物都产生了负面影响。 _1 Altho
6、ugh it is not unusual for species to die out naturally，the rate at which this is now happening is cause for concern.2 A 2015 study by scientists who were based at Brown University and Duke University in the US，looked at how quickly species die out due to natural causes，that is，the “background extinc
7、tion rate”3 They found that human activity is causing species to die out 1,000 times faster than normal.4 It is clear that human activity has negatively affected all other species on Earth，including animals and plants.七选五Its important to learn how we can protect the environment.Here are 5R rules for
8、 us.Reduce.If you want to reduce waste，you should use things more wisely. 1 .If everyone uses paper carelessly，soon we would not have any trees left.Other things are also being wasted，and people dont know what to do with the waste in big cities.So it is necessary to reduce the amount of waste we pro
9、duce.Reuse.You should always think of reusing things before throwing them away.For example， 2 .In a family，you may pass on such clothes to younger brothers or sisters.Recycle.Bottles，cans and paper can easily be recycled.By doing so we can save lots of time and money.For example， 3 .The metal can be
10、 used to make new coke cans.Recover. 4 .You have two choices：one is to throw the apples away，the second is to throw the rotten ones and keep the good ones.In this way，you are recovering the eatable parts of food.Repair.If one of the legs of your table is broken，you should repair it.If you want to bu
11、y something newer and better，it is better for you to sell the old table，or 5 .Learn the rules to protect our environment.Lets try our best to make the earth cleaner and more beautiful.ATrees are planted every yearBdont throw it away if you can use itCgive it to people who can use it after repairing itDA large number of trees are being cut down to make paperEWhen you buy a box of apples，there may be a few rotten onesFcoke cans are sent to a factory，where they are smashed flat and meltedGgive the clothes you do not use or the ones which are too small to the poor1D2G3F4E5C