1、课时作业21Introduction & Reading and Speaking.单句语法填空1To our surprise, her parents were absent (absence) from her wedding ceremony.2To join the club, you have to undertake to_buy (buy) at least six books a year.3Many educators advocate reforming (reform) the present education system.4The film reminded ma
2、ny people of their life at university.5The poor cat is at the mercy of the naughty boy.6He was brave enough to rescue the people from the earthquake ruins, ignoring (ignore) personal danger.7The early pioneers went through many hardships to settle on the new land.8His delay is due to the fact that t
3、he car went wrong halfway.9The ministry didnt expect there to_be (be) quite such a negative reaction from farmers.10Most of the people invited (invite) to the celebration were famous scientists and professors.完成句子1Does_it_matter if we cant arrive on time?如果我们不能按时到达要紧吗？2The girl (who_is)_dressed_in_w
4、hite is my daughter.穿白色衣服的那个女孩是我女儿。3Wherever/No_matter_where_you_go,_I will go with you.无论你去哪儿，我都和你一起去。4Yesterday we visited the West Lake for_which Hangzhou is famous.昨天我们游览了杭州著名的西湖。5In primary schools, there_needs_to_be a better understanding of the knowledge of computers.在小学阶段，需要对电脑知识有更好的理解。.串点成篇
5、微表达文化遗产是文化与历史的象征。它们是我们人类的宝贵(precious)遗产，而且保护(preserve)文化遗产是至关重要(of vital importance)的。然而一些人对此毫无作为(contribute.to.)甚至危害我们的文化遗产。当我旅行的时候，我见到一些历史遗迹(remains)岌岌可危，这让我感到非常吃惊。因此，我提议(propose)我们每一个人都应该参与其中，为保护文化遗产做些什么。除此之外(apart from)，政府也应该拨发一些资金来对它们进行维护(maintain)。Cultural_relics_are_a_symbol_of_culture_and_hi
6、story._They_are_precious_heritage_for_us_mankind_and_it_is_of_vital_importance_to_preserve_them._However,_some_people_contribute_nothing_to_protecting_them,_even_cause_damage_to_the_relics._When_I_was_travelling,_I_could_see_some_historic_remains_were_in_danger,_which_came_as_a_great_shock_to_me._So
7、_I_propose_that_every_one_of_us_(should)_get_involved_and_do_something_for_the_protection_of_cultural_relics._Apart_from_it_，the_government_should_allocate_some_funds_for_maintaining_them.阅读理解Organic(有机的)farming is a type of agriculture that benefits from the recycling and use of natural products. U
8、se of dried plants not only saves money，but also ensures the growth of crops. The technique is characterized by the use of green manure (肥料), biological pest control methods and special farming techniques to keep soil productive. Limiting the use of manmade chemicals or completely doing away with th
9、em reduces the risk of diseases. Today，organic farming is a major and preferred industry around the world. Organically grown food products have a huge market，with farmlands covering about 10% of the total worldfarmland cover. The_hard_work_of_Sir_Albert_Howard,_the_Father_of_Organic_Farming,_has_pai
10、d_off.Advantages of Organic Farming：(1)The economics of organic farming are characterized by increasing profits through reduced water use and reduced soil erosion(侵蚀)(2)Organic farming produces the same crops as those produced through traditional farming methods，but uses half the energy，and holds 40
11、% more top soil.(3)Farming the organic way enables farmers to get rid of weeds without the use of any chemicals.(4)The use of green pesticides(杀虫剂) is environmentally friendly and does no harm to humans health.Disadvantages of Organic Farming：(1)Organic methods of farming produce less，compared to tr
12、aditional farming techniques.(2)Organic agriculture does little to fight global climate change.Though organic farming practices are recognized as giving out less CO2，but not to a significant degree.However，though there are some disadvantages of organic farming，farms where organic methods for croppin
13、g have been used have more advantages than traditional farms. Organic agriculture is surely better in the long term.这是一篇说明文。文章详细介绍了有机农业以及其优缺点。1The underlined sentence in Paragraph 1 shows that Sir Albert Howard _.Aworked hard for nothingBsucceeded in organic farmingCspent all his time on organic far
14、mingDdidnt expect organic farming to be successful答案：B解析：词义猜测题。由文章第一段“The_hard_work_of_Sir_Albert_Howard,_the_Father_of_Organic_Farming,_has_paid_off.”可知，Albert Howard 作为有机种植之父，他的辛劳取得了成功。此处pay off 与选项中的succeed in 意思相同，意为“取得成功”，故选B。2According to the passage，compared to traditional farming organic far
15、ming _.ais more environmentally friendlybproduces a lot more foodcuses less energydresults in more weeds in the farmlandeis better for humans healthAabc BacdCace Dbce答案：C解析：细节理解题。由文章中Advantages of Organic Farming有机种植的优点可知，有机种植更加环保，使用更少的资源，更有利于人类健康，故选C。3The authors attitude towards organic farming is
16、 _.Aanxious BhopelessCunclear Doptimistic答案：D解析：推理判断题。由文章最后一段“However，though there are some disadvantages of organic farming，farms where organic methods for cropping have been used have more advantages than traditional farms. Organic agriculture is surely better in the long term.”可知，采用有机种植的农场比传统的农场有
17、更多的优点，从长期来看有机农业确定会更好，作者是乐观的，故选D。4The writer wrote this passage to tell us _.Athe development of agricultureBwhat kind of food is being grown at presentCwhy organic farming is so popular around the worldDwhat organic farming is and its advantages and disadvantages答案：D解析：推理判断题。整篇文章结构简单又直观。文章第一段对有机种植进行
18、了详细介绍，紧接着用加粗字体突出优缺点并进行逐一列举，故选D。.七选五Johannes Gutenberg was chosen to be the most important figure of the past millennium(千年)by the media. You may not be familiar with him. _1_ Gutenberg is praised for having invented the printing press and therefore preparing the way for printing books.He was born in
19、to a wealthy family in the city of Mainz，Germany.In 1428，he moved to Strasbourg and lived there for almost 20 years. _2_Gutenberg used his skills in metalwork for the mass production of books. _3_ That means that each copy of the Catholic Bible and all of its 73 books were painstakingly handwritten
20、by penmen.Gutenberg fashioned a font(字体)of over 300 characters，far larger than the fonts of today.To make this possible，he invented the variablewidth mold(模具)and perfected the mixture of materials used by type factories up to the present century._4_ Between 1450 and 1455，while preparing to produce a
21、 large Latin Bible，Gutenberg is thought to have printed a number of smaller books，a calendar，and so on.The Bible of 42 Lines，the oldest surviving printed book in the Western world，was completed by August 15,1456.The discovery of the modern printing press changed the way information was delivered. _5
22、_Even today in the computer age，we rely heavily on the printed word or text for instruction，information，and for the pleasure of reading literature.AGutenberg made the world a much richer place.BBut he has certainly influenced your life in some ways.CGutenbergs idea was one of the greatest of all man
23、kind.DBy 1450，Gutenberg was back in Mainz at work on a printing press.EThis invention was also responsible for educating the masses worldwide.FBefore the spread of Gutenbergs idea，literature was primarily handwritten.GIt was in Strasbourg that he probably made his first experiments with moveable typ
24、e.印刷机的发明人约翰内斯古登堡被媒体选为过去一千年里最重要的人物。1B解析：考查对上下文语境的理解。空前句意：你可能并不熟悉他。空后句意：Gutenberg因为发明了印刷机而得到赞扬。可知这里用B.But he has certainly influenced your life in some ways.(但是他确实在一些方面影响了你的生活。)符合上下文。故选B。2G解析：考查对上下文语境的理解。空前句意：1428年，他搬去Strasbourg，在那里他住了将近20年。可知这里用G.It was in Strasbourg that he probably made his first e
25、xperiments with moveable type. (正是在Strasbourg，他可能用活字印刷做了他的第一次试验。)符合句意。故选G。3F解析：考查对上下文语境的理解。空前句意：Gutenberg使用他对金属制品的技能以供书籍的大量生产。空后句意：那就意味着每本天主教圣经以及所有的73本书全部都是penmen精心手写的。可知这里F.(在Gutenberg的方法传播之前，文学著作主要都是手写的。)符合上下文。故选F。4D解析：考查对上下文语境的理解。空后句意：在1450到1455年之间，准备出版一本大的拉丁圣经时，Gutenberg被认为已经印刷了很多更小的书，一本日历等等。可知这里用D.(到1450年为止，Gutenberg回到Mainz致力于印刷机的工作。)符合句意。故选D。5E解析：考查对上下文语境的理解。空前句意：现代印刷机的发现改变了信息的传递方式。可知这里用E.(这项发明也对全世界的大众教育起到积极作用。)符合上下文。故选E。