1、课时作业12单元加餐练.单句语法填空1The war broke out, and many innocent people were at the risk of losing their lives.2Would you please turn your radio down a little? Im tired now and feel like sleeping (sleep)3To_strengthen (strengthen) his position in the country, he appointed his close friend Henry as head of th
2、e troops.4Nothing is more stressful (stress) than going on a business trip with our boss.5No matter how busy he is, he makes it a rule to read at least 20 minutes a day.6The school makes it a regulation that students should be banned from bringing cellphones to school.7To our surprise, the little bo
3、y did memorize the words in ten minutes.8He only gave an embarrassed (embarrass) smile when she spilled the water onto him.9Toms mother kept telling him that he should work harder, but it didnt help.10Disappointed (disappoint) at failing in the math exam, John wouldnt like to talk about it to his pa
4、rents.选词填空be addicted to， take the risk of， be accustomed to， have an effect on， decide on， get into， due to， in spite of1What has_an_effect_on the prices of the houses on earth in our country?2OK, I have decided_on buying the jacket. How much is it?3My son is_addicted_to computer games he hardly ev
5、er comes out of his room.4Tom is_accustomed_to noise, because he lives right in the center of the city.5The pretty girl has got/gotten_into the habit of finishing his homework before going to bed.6Most of them turned up on time; only Tom arrived late due_to the storm.7In_spite_of the bad weather, I
6、had fun meeting friends and relatives.8He doesnt want to take_the_risk_of losing his job, especially since he became the main source of familys income.完成句子1As_we_all_know,_China is a developing country.我们都知道，中国是个发展中国家。2Jack said he would come and he did_come_here.杰克说他会来的，结果他的确来了。3It is past midnight
7、, and its_time_for_us_to_go_home.已经是午夜了，我们该回家了。4Ding Ning is as_good_a_player_as Li Xiaoxia.丁宁是和李晓霞同样优秀的运动员。5Every_time_I_ask_her_to_set_the_date,_she always says she is busy.每次我要求她确定日期的时候，她总是说忙。6As we can see, developing a good habit is so_important_that_I_would_like_to_introduce one kind of good l
8、earning habit to you keeping a learning diary every day.正如我们所知道的一样，养成好的习惯是如此的重要，我想向你介绍一种好的学习习惯，那就是每天记学习日记。.单元语法专练(句型转换)1To my surprise, he thought that it was impossible for him to learn English well.To my surprise, he thought it impossible for him to learn English well.2I became stronger and strong
9、er, which made my parents glad.I became stronger and stronger, and it made my parents glad.3He felt it was his duty to serve the people heart and soul.He felt it his duty to serve the people heart and soul.4In the west, people send Christmas presents to their relatives and friends, making it a rule.
10、In the west, people make it a rule to send Christmas presents to their relatives and friends.5When and where to hold the match hasnt been decided.It hasnt been decided when and where to hold the match.阅读理解Even though we have more choices of what to eat than forty years ago, the average diet of the a
11、verage British is less healthy. In fact, according to a recent research, British pets, eating specially prepared tinned food, have a healthier diet than most of their owners.Health ministers were shocked at recent figures which show that Britain has the third worst record in Europe for heart disease
12、. Cancer is also a growing cause of illness and death. This has led to the governments movement to encourage healthier eating habits. Health ministers believe we should take a lesson from America, where death rates from heart disease have fallen.The American public is now realising the link (联系) bet
13、ween the diet and good health. The movement will encourage the eating of less animal fat, salt and sugar that are eaten at present. It will show the goodness of eating more fresh fruit and vegetables.The Health Department is going to publish a book which will give help on what food to eat and what n
14、ot to.Discussions are being held between the government and food makers. Following these talks, food will be labeled (贴标签) so that users can clearly see how much fat, sugar there is in the food products they buy.人们的饮食不如过去合理，卫生部将出版一本书指导人们合理饮食。1The author considers that the average diet of the average
15、 British is _.AhealthyBunhealthyCless healthy than 40 years agoDless healthy than that of their pets答案：C解析：细节理解题。根据第一段第一句可知，C项正确。2The number of English people who have heart disease comes out _ in Europe.Afirst BsecondCthird Dlast答案：C解析：细节理解题。根据第二段第一句话可知。3The death rates from heart disease in Americ
16、a _.Ahave fallenBhave risenCare higher than that in BritainDare lower than that in the UK答案：A解析：细节理解题。由第二段最后一句可知。4The governments movement _.Aencourages people to eat less animal fat, salt and sugarBencourages people to eat more fruit and vegetablesCencourages people to form healthier eating habitsD
17、all of the above答案：D解析：细节理解题。根据第二段倒数第二句和第三段内容可知。.完形填空Throughout history man has had to accept the fact that all living things must die. But people now live longer than they _1_. Yet, all living things still show the _2_ of aging, which will eventually _3_ death.Aging is not a disease, but as a perso
18、n passes maturity (成熟), the cells of the body and the _4_ they form do not function as well as they _5_ in childhood and teenage years. The body provides less _6_ against diseases and is more _7_ to have accidents.A number of related causes may _8_ aging. Some cells of the body have a fairly long li
19、fe, but they are not _9_ when they die. As a person ages, _10_ of brain cells and muscle cells decreases. _11_ body cells die and are replaced by new cells. In an aging person the _12_ cells may not be as workable or as capable _13_ growth as those of a young person.Another _14_ in aging may be chan
20、ges within the cells _15_. Some of the protein chemicals in cells are known _16_ with age and become less elastic (有弹性的). This is why the skin of old people wrinkles and _17_. This is also the reason why old people _18_ in height. There may be other more important chemical changes in the cells. Some
21、 complex cell chemicals, such as DNA and RNA, store and _19_ information that the cells need. Aging may affect this _20_ and change the informationcarrying molecules so that they do not transmit the information as well.本文讲述了人为什么衰老和死亡。1A.wouldBbe used toCused to Dused答案：C解析：used to do sth.“过去常常”，此句为省
22、略句，为避免重复，只保留不定式符号to，指现在人们的寿命比过去长了。2A.function BeffectCaffect Dsign答案：B解析：根据下文，可知答案为B项。全文主要说了生物都受年龄的影响。3A.lead in Bgive inCrun into Dresult in答案：D解析：result in“导致”，符合题意。4A.hands BfeetCheart Dorgans答案：D解析：organs“器官”，人的衰老不仅仅表现在hands, feet和heart方面，而是表现在由细胞组成的各个器官。5A.do Bhas doneCdid Dhad done答案：C解析：did代指
23、worked。6A.energy BprotectionCvigor Dpower答案：B解析：根据词的搭配，可知四个选项中，只有protection能和against搭配。7A.likely BprobableCpossible Dalike答案：A解析：probable, possible只能用it作主语，alike词义不对。be likely to do.“很可能做”。8A.attend to Bcontribute toCadd to Ddevote to答案：B解析：contribute to“导致”，相当于cause/lead to。本句句意：很多相关的原因可能导致衰老。9A.re
24、placed BrebuiltCrecovered Dsurrendered答案：A解析：本文是在讲述人为什么衰老、死亡，因此我们推知某些细胞不能被代替，人才会衰老。10A.a number Bthe amountCthe number Da great deal答案：C解析：“the number of复数名词”表示“的数目”，作主语时谓语动词用单数。a number of常用来修饰复数名词，作主语时，谓语动词用复数；a great deal of后接不可数名词；the amount of与不可数名词连用。11A.The others BThe otherCAnother DOther答案：
25、D解析：因为上文出现了some一词，所以选择other。 some.other.“一些另一些”。12A.old BleftCnew Dother答案：C解析：老年人体内的新细胞可能不像年轻人那样有活力。13A.to BforCof Din答案：C解析：be capable of “有的能力”。14A.factor BeffectCreason Delement答案：A解析：文章主要说了衰老的原因，所以应用factor，表示“另外一个因素是”。15A.for themselves Bof themselvesCthemselves Don their own答案：C解析：从句子结构来看，空格处需
26、填一个作同位语的名词或代词来作cells的同位语，四个选项中，只有themselves可以。16A.change Bto have changedCto change Dto be changed答案：C解析：随着年龄的增长，细胞内的一些蛋白质类化学物质也在发生变化。17A.hangs loose Bhangs looselyCis hanging loosely Dis hanging loose答案：B解析：hang loosely意为“松弛下来”。18A.increase BshrinkClengthen Ddecrease答案：B解析：shrink“收缩”，这是常识，人老了身高会变矮。
27、19A.pass away Bpass byCpass off Dpass on答案：D解析：pass on“传递”。pass away“死去”；pass by“经过”；pass off“逐渐消失”。20A.improvement BprocessionCapproach Dprocess答案：D解析：process“过程”，符合上下文意思，即：衰老可能影响这种进程和改变信息。.应用文写作你的网友Mike长期上网，出现了视力下降、病态肥胖等多种健康问题，并染上了一些疾病，住进了医院。现在请你以李华的身份给他写一封信，希望他早日康复，并给他一些保健的建议。注意：1语言通顺、连贯；2词数80左右，
28、开头和结尾已经给出，不计入总词数；3不得使用真实姓名和学校名称。参考词汇：肥胖obesityDear Mike，Im very sorry to hear that you_are_in_hospital_because_of_your_eyesight_decreasing_and_obesity_and_some_other_diseases._I_hope_that_you_will_recover_soon.You_said_that_your_illness_was_caused_by_surfing_the_Internet._I_think_you_should_not_stay_late_surfing_the_Internet_in_order_to_keep_healthy,_because_nothing_is_more_important_than_health.Therefore,_we_should_spend_less_time_on_it,_but_we_should_spend_more_time_working_out._Only_in_this_way_can_we_be_healthy_enough_to_study_better_and_work_better_in_the_future.Best wishes!Yours，Li Hua