2020-2021学年人教版英语必修4课时作业：UNIT 1 GRAMMAR .doc

1、.七选五Cellphones: hang up or keep talkingMillions of people are using cellphones today. In many places, it is actually considered unusual not to use one. _1_ They find that the phones are more than a means of communicationhaving mobile phones shows that they are cool and connected.The explosions aroun

2、d the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. Mobile phone companies are worried about the negative publicity (负面报道) of such ideas. _2_On the other hand, sign

3、s of change in the issues of the brain and head can be detected with modern scanning equipment. In one case, a travelling salesman had to retire at a young age because of serious memory loss. _3_ This man used to talk on his mobile phone for about six hours a day, every day of his working week, for

4、a couple of years._4_ The answer is radiation (辐射). Hightech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.As the discussion about the safety continues, it appears

5、 that its best to use mobile phones less often. _5_ Use your mobile phone only when you really need it. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, its wise not to use your mobile phone too often.AThey say that there is no proof that mobi

6、le phones are bad for your health.BThey will possibly affect their benefits.CIn many countries, cell phones are very popular with young people.DUse your regular phone if you want to talk for a long time.EHe couldnt remember even simple tasks.FWhat do the doctors worry about?GWhat is it that makes mo

7、bile phones potentially harmful?文章讲述的是今天数以万计的人在使用手机，在许多国家，手机很受年轻人的欢迎。一些医生担心将来许多人会因为使用手机而遇到健康问题，但是没有证据证明手机有害健康。明智的做法是不要经常使用手机。1C解析：根据下文“They find that the phones are more than a means of communicationhaving mobile phones shows that they are cool and connected.”可知他们发现手机不仅仅是一种交流工具，手机还会让他们看起来很酷。they指代yo

8、ung people。故C项(在许多国家，手机很受年轻人的欢迎。)符合语境。2A解析：根据“Mobile phone companies are worried about the negative publicity (负面报道) of such ideas.”可知手机公司担心负面报道。他们说没有证据证明手机有害健康。且本段围绕健康问题进行说明，故选A。3E解析：根据“In one case, a travelling salesman had to retire at a young age because of serious memory loss.”可知在一个案例中，一个经常出差的推

9、销员不得不在很年轻的时候退休，因为他的记忆力严重丧失。他甚至连简单的任务都记不起来了。故选E。4G解析：根据“The answer is radiation (辐射)”可知空处是在问是什么使手机有潜在的危害。故选G。5D解析：根据下文“Use your mobile phone only when you really need it.”可知只有在你真正需要手机的时候才使用它。D项(如果你想通话很长时间，就用普通电话。)符合语境。.翻译下列句子，注意黑体部分要用到本单元的单词、短语或句型，然后将其合并成一篇短文1几天前，我在街上偶然遇到一位老朋友。The_other_day,_I_came_a

10、cross_an_old_friend_in_the_street.2他过着艰苦的生活。He_is_leading_a_hard_life.3他父母在车祸中丧生，撇下他由他叔叔养大。Both_of_his_parents_died_in_a_car_accident,_leaving_him_brought_up_by_his_uncle.4因为很穷，他叔叔担心被瞧不起。Because_he_is_so_poor,_his_uncle_is_worried_about_being_looked_down_upon.5我的朋友在一家酒店工作以养活家人。My_friend_works_in_a_h

11、otel_to_support_the_whole_family.6他严格遵守酒店的规定，因为表现好而赢得大家的尊敬。He_observes_the_rules_of_the_hotel_strictly_and_wins_the_respect_of_others_because_he_behaves_well.7他打算每月花两天的时间学习英语。He_intends_to_spend_two_days_every_month_studying_English.8如果他继续这么做的话，我相信他迟早会成功的。If_he_carries_on_doing_like_this,_Im_sure_he

12、_will_succeed_sooner_or_later.请将以上句子连成一篇语言流畅、用词准确、逻辑严密的短文。The other day, I came across an old friend in the street, who is leading a hard life. Both of his parents died in a car accident, leaving him brought up by his uncle who is worried about being looked down upon because he is so poor. My friend works in a hotel to support the whole family and he observes the rules of the hotel strictly and wins the respect of others because he behaves well. He intends to spend two days every month studying English. If he carries on doing like this, Im sure he will succeed sooner or later.