人教版高中英语必修4unit单元课时训练2

课时训练2Ⅰ.根据所给的首字母或汉语提示写出单词的正确形式1.My only r is that I have missed the chance to go abroad for further education.2.He (评论) that it was an excellent film.3.All your changes of plan have made me totally (困惑).4.This method will help (减少) a lot of waste.5.Please make a (总结) of the main idea of the passage.6.The flood has (引起) great damage to the people there.7.Paper was one of the greatest (发现) of ancient China.8.This will have a great influence on food and food (生产) in Russia.9.All the people are (集中注意力) on the recent dispute.答案:1.regret mented 3.confused 4.reduce 5.summary 6.caused7.discoveries 8.production 9.focusingⅡ.用所给词的适当形式填空1.Drinking and driving is one of the most common (cause) of traffic accidents.2.He regretted not (study) hard.3.The teacher is going to make a (chemistry) experiment in the science class.4.The company is famous for the (produce) of computers.5.We all benefit from the new (discover).6.Due to the drought,the production (reduce) by 20%.7.When I read magazines,I enjoy (skim) and get the main content first.8.The new situation is really (confuse) and people are (confuse) by it.答案:1.causes 2.having studied 3.chemical 4.production 5.discoveries6.reduced/has reduced7.skimming8.confusing; confusedⅢ.完成句子1.每次考试没考好,他就会后悔没集中精力学习。

Each time he fails in the exam,he willhis lessons.2.汤姆没发表什么评论,只是冷笑一声就走了。

Tom ;he only smiled coldly and walked out.3.他每天早晨花30分钟锻炼身体,以增强体质。

Every morning he spends 30 minutes doing exerciseto .4.今年我们想方设法使得花园不生杂草。

We have managed toweeds this year.5.我们每五天有两节音乐课。

We have two music lessons .答案:1.regret not focusing on 2.made no comment 3.build himself up 4.keep the garden free from 5.every five daysⅠ.语法填空Last October,while tending her garden in Mora,Sweden,Lena Pahlsson pulled out a handful of small 1. (carrot) and was about to throw them away.But something made her look closer,and she noticed a 2. (shine) object.Yes,there beneath the leafy top of one tiny carrot was her long-lost wedding ring.Pahlsson screamed 3. loudly that her daughter came running from the house.“She thought I had hurt 4. (I),” says Pahlsson.Sixteen years 5. (early),Pahlsson had removed the diamond ring 6. (cook) a meal.When she wanted to put the ring back on later,it was gone.She suspected that one of her three daughters—then ten,eight,and six—had picked it up,but the girls said they hadn’t.Pahlsson and her husband 7. (search) the kitchen,checking every corner,but turned up nothing.“I gave up hope of finding my ring again,” she says.She never replaced it.Pahlsson and her husband now think the ring probably got8. (sweep) into a pile of kitchen rubbish and was spread over the garden,9. it remained untilthe carrot’s leafy top accidentally sprouted(生长) through it.For Pahlsson,its return was 10. wonder.【语篇导读】本文是一篇记叙文。

文章讲述了作者奇迹般地从自家的菜园里找到了她丢失了十六年的戒指的故事。

答案及剖析:1.carrots 根据a handful of可知,设空处应该用复数形式,表示拔出了一把小胡萝卜,因此用carrots。

2.shiny/shining 根据上下文可知,此处指“闪光的东西”,所填单词作定语,表示特征,因此用shiny或shining。

3.so 此处考查so...that...结构,意为“如此……以至于……”。

4.myself 她认为我伤着我自己了。

根据语境可知,此处应该用反身代词。

5.earlier 此处表示“十六年前”,earlier……之前。

6.to cook 此处用动词不定式表目的。

7.searched 此处所缺单词是谓语动词,讲述的是过去的事情,因此应该用一般过去时。

8.swept 此处表示“戒指可能被扫到了厨房垃圾里面”。

根据语境可知,此处应该用swept。

9.where 此处所缺单词引导定语从句,并且在定语从句中作地点状语,因此用where。

10.a 此处所填单词用来修饰名词wonder,同时表示泛指,因此用不定冠词a。

Ⅱ.阅读理解AThe world’s nights are getting brighter and brighter as light pollution invades darkness almost everywhere.Researchers found that Earth’s artificially lit outdoor area grew by 2% a year from 2012 to 2016.So did night time brightness.Light pollution was even worse than that,according to the German-led team,because the light sensor(感应器)cannot recognize some of the LED lighting that is becoming more widespread,specifically blue light.“Honestly,I had hoped that with LEDs we were improving the situation.But it turns out quite disappointing.” said Kyba,the lead author of the study.“Asia,Africa and South America,for the most part,saw an increase in artificial night lighting.More and more places are fixing outdoor lighting,due to its low cost and the growth in communities’ wealth,” the scientists said.The biological effect from the increasing man-made light is obvious,according to the researchers.People’s sleep can be damaged,which in turn can affect their health.The living behavior of birds,fish,insects and bats can be interrupted.And forget about seeing stars or the Milky Way if the pollution continues.“Many people are using light at night without really thinking about the cost,”said Franz Holker,one of the co-authors.“Not just the economic cost,but also the cost that you have to pay for environmental damage.”1.Why is the night becoming increasingly brighter?A.Artificial light is used in larger areas.B.The light sensors fail to work properly.C.LED lighting gives off too much blue light.D.More families afford to use lighting at home.2.The brighter nights will bring about .A.a more balanced sleeping scheduleB.reduced cost of lighting during the nightC.a better view of stars and the Milky WayD.harmful biological effects on some animals3.Where is this passage probably taken from?A.A tourist guide.B.A science magazine.C.A biology textbook.D.A medical report.【语篇导读】本文是一篇说明文。