学生啦：课时作业（四）UNIT 4 Section DLesson 3 Internetand FriendshipsI单句语法填空/单词拼写(add)to an album,I gave him a pen and a pencil.2.The(argue)among the two parties was blown up by the press.3.(create)thinking is the soul and the core of human being's creation activities.4.Lack of cash is a(limit)factor.5.Would you(brief)introduce yourself?6.He forced himself to(关注)his thoughts on work.7.The company's market share is 48(百分比)in the marketplace.8.The true concept of mobile phones has disappeared,and now we have(智能手机)9.Gardening is a very(有益的)pastime.10.They put their arms around each other and(拥抱)Ⅱ完成句子1.Eating too much sugar will(对…有害)kids'teeth.2.Weall(担心)her safety.3(另外)，he sometimes uses my things without permission.(在我看来)，what he said is not true at all..5.People should(关注)collaborative leaming rather thanindividual leamingl.孩子们受邀请建立一个账号，学习如何理财。(set up an account)2.有关咨询订单问题，请与我们的售后部门联系。(enquire about)3.这家公司更关心金钱而不是客户的需求。(be concerned with)4.把注意力集中在你要达成的目标上，而非你所恐惧的事情上。(ocus on)5.那个地区的经济正以令人惊异的速度发展。(amazing speed)Ⅳ语法填空As far as I'm concemed,the Internet can harm friendships.As you can see,more and morechildren communicate through a screen,which makes 1.more difficult for them to showkindness to others.It is not the 2.(replace)for face-to-face contact.The Internet canalso make people self-centred.Some people don't think of anyone or anything but themselves.They are only concerned with their online popularity.They prefer to post lots of their imagesrather than have proper 3.(conversation)with their friends,but they don't realise that theimages don't 4.(necessary)help form meaningful relationships.Images really cannotreplace a real-life smile or hug.In fact,a lot of the content 5.(post)on social media is