1、课时作业20Grammar.单词拼写1If you want to change for a better room, youll have to pay another 50 yuan.2When she was in Paris, she would_go (go) shopping on weekends.3I would_fly (fly) to the moon one day.4When the man was a boy, he would_sit (sit) for hours at the door.5Each of the answers is worth 20 point
2、s.6I dont think either of the two girls are capable of the work.7Another two weeks passed and he got no answer from the postoffice.8He cant remember the village as it used to_be (be)9You shouldnt stop your car here since there is a sign reading “No Parking”10The manager believes prices will not rise
3、 by more than another four percent.单句改错1If you do most thing with your left hand, you are lefthanded.thingthings2While you are there, youll have to get used to do exercises every day.dodoing3The woman used to walking by the river when she was young.walkingwalk4The cost of buying a house in this city
4、 is higher than one in my hometown.onethat5As a writer, he is regarded to be failure.be后加a.完成句子1My father used_to_smoke_a_lot,_but now he has given it up.我爸爸过去吸烟很多，但是现在他戒了。2This coat is too small. Could you show_me_another_one?这件外套太小了，你能再给我拿一件吗？3Unfortunately, several_students_were_injured in the ac
5、cident yesterday.真不幸，昨天有几个学生在事故中受伤了。4My mother would_say,_“Where there is a will, there is a way.”我妈妈过去常说：“有志者，事竟成。”5He and his friends spent the_last_sunny_days at the seaside.他和朋友们在海边度过了最后几天阳光灿烂的日子。6He used_to_stay_up late, but now he is used to going to bed early.以前他总是熬夜到很晚，但是现在已经习惯早睡了。7He would_
6、get_up at six every morning and have a walk in the forest then.那时候他总是每天早晨六点起床，然后到森林里去散步。8Youll soon_get_used_to_living in the country.很快你就会习惯住在乡下了。9I used_not_to/usednt_to/didnt_use_to like wine, but now Im fond of it.我过去不喜欢喝酒，但现在喜欢了。10Used_there_to be a hotel on that corner?那个拐角过去有一家旅馆吗？.七选五Its not
7、 easy to talk with teens about their relationship with screens. _1_Open with a discussion of young childrens tech useRather than asking teens to put down iPads, introduce a discussion on babies tech use. _2_ When I had my eighth graders read an article about banning iPads for children under two, the
8、 class were interested.Admit your tech problemsOne of my students wrote that she would like to prevent the whole family from using tech facilities. Clearly, someone in her home was having some tech use problems. _3_ We cant tell kids to put down their devices if we continue to use them.Keep a balanc
9、ed opinionWe adults wouldnt be able to live in todays society without screens, so we shouldnt expect teenagers to do so either. _4_ Its improved our lives in many ways. Before we start talking about its challenges, we need to realize its opportunities, too.Deal with the topic like you would nutritio
10、n (营养)If children werent making good food choices, we would never take their lunches away and make them stay hungry. We would teach them how to eat healthily and help them learn to set new habits. _5_ Instead of taking their devices away, we should help them keep a balance with technology.AThe same
11、should go for technology.BTechnology isnt a bad habit to be got out of.CThis will invite teens to talk about the subject.DTeens need facetoface communication with adults.EOne of teens fears is that well take their devices away.FSo we need to be open about our own tech habits as well.GHere are a few
12、ways that will make the discussion easier and more productive.科技产品已经渗透到青少年生活的各个领域，而与青少年讨论他们与电子产品的关系并非易事。本文为我们介绍了与青少年就科技产品问题进行沟通的几种恰当的方式。1G解析：文章开头提到与青少年谈论他们与屏幕的关系是不容易的。而G选项提到下列几种方式可以使沟通变得简单高效。故选G。2C解析：第二段开头提到与其要求青少年放下平板电脑，还不如让他们对儿童使用科技产品这个话题进行讨论。选项C提到通过这种方式，可以使青少年主动对这个话题进行讨论。故选C。3F解析：第三段最后一句We cant t
13、ell.to use them.提到如果我们一直使用电子产品，就不能要求孩子放下他们手中的电子设备。选项F提到我们也需要坦诚自己使用电子产品的习惯。故选F。4B解析：第四段第一句We adults wouldt.to do so either.提到当今社会，我们成人离开电子产品无法生存，所以我们不能期待孩子也这样做，以及Its improved.ways.电子产品在很多方面提高我们的生活，可知选项B正确，科技不是一种要摆脱的坏习惯。故选B。5A解析：文章最后一段提到我们会教育孩子如何健康饮食并帮助他们养成习惯，可知对电子产品的使用也是如此。故选A。.语法填空The polar bear is
14、found in the Arctic Circle and some big land masses as far south as Newfoundland. While they are rare north of 88， there is evidence _1_ they range all the way across the Arctic, and as far south as James Bay in Canada. It is difficult to figure out a global population of polar bears as much of the
15、range has been _2_ (poor) studied; however, biologists calculate that there are about 20,00025,000 polar bears worldwide.Modern methods _3_ tracking polar bear populations have been employed only since the mid1980s, and are expensive _4_ (perform) consistently over a large area. In recent years some
16、 Inuit people in Nunavut _5_ (report) increases in bear sightings around human settlements, leading to a _6_ (believe) that populations are increasing. Scientists have responded by _7_ (note) that hungry bears may be congregating (聚集) around human settlements, leading to the illusion (错觉) that popul
17、ations are _8_ (high) than they actually are. Of _9_ nineteen recognized polar bear subpopulations, there are declining, six _10_ (be) stable, one is increasing, and nine lack enough data.本文是一篇说明文。文章主要介绍了有关北极熊的信息，包括它们的栖息地和数量等。1that解析：考查同位语从句。分析句子结构可知，空格处引导同位语从句，解释说明名词evidence的具体内容；从句的句意完整，不缺少成分，故用th
18、at连接。故填that。2poorly解析：考查词性转换。此处应用副词修饰动词“studied”，在句中作状语。故填poorly。3of/for解析：考查名词。名词“methods”常与介词of或for搭配使用，意为“的方法”。故填of/for。4to_perform解析：考查非谓语动词。beadj.to do是固定句型，意为“做某事是的”，此处应用动词不定式。故填to perform。5have_reported解析：考查动词的时态。时间状语“In recent years”表示一段时间，通常和现在完成时连用，此处应用现在完成时。故填have reported。6belief解析：考查词性转
19、换。分析句子结构可知，本句为同位语从句，从句解释抽象名词belief，表示在人类居住区附近出没的北极熊的数量在增加的这种看法，故填belief。7noting解析：考查非谓语动词。介词“by”后应使用动名词，为固定用法；意为“通过做某事”。且Scientists和note之间是主动关系，应用主动语态。故填noting。8higher解析：考查形容词的比较等级。根据空格后的“than”和语境可知，空格处应用形容词high的比较级形式。故填higher。9the解析：考查冠词。此处特指19个被确认的北极熊亚种群，应用定冠词the。故填the。10are解析：考查动词的时态和主谓一致。文章的主体时态为一般现在时，结合本句中的“and nine lack”可知，此处也应用一般现在时；且主语为“six(polar bear subpopulations)”，谓语动词应用复数形式。故填are。
