2012—2013英语必修4人教版新课标Unit 2同步练习（答案）
Ⅰ.单词拼写
1．From his sunburnt face，we can know he spends much time working under the sun. 2．Hunger is still a big problem in the world，for many people haven’t enough to eat. 3．The output of coal must be increased to meet the need of electricity. 4．People have so much freedom to choose their jobs that they can do whatever they like. 5．I don’t think the job suitable for you.You’d better choose another one. 6．This area is rich in minerals and the need for miners is great. 7．The river expands and forms a lake. 8．He is considering ridding of the weeds in the garden，for they are affecting the growth of the flowers.
9．The factories are trying to reduce pollution to an even lower level so that we can have a better environment.
10．The flood rose to a level of 60 feet. Ⅱ.句型转换
1．I’m just getting ready for school. I am preparing for school. 2．He comes to see me every week. He comes to see me every seven days. 3．He didn’t study hard；as a result，he failed. As a result of his laziness，he failed.
4．A heavy rain stopped me coming here yesterday. A heavy rain prevented me from coming here yesterday. 5．No matter what you say，I won’t listen to you. Whatever you say，I won’t listen to you. 6．His company becomes larger and larger. His business is expanding. 7．There is no doubt that he will attend the party. It is certain that he will attend the party. 8．He suggested that the work should be started at once. He advised that the work be done at once. 9．The result of the contest satisfied the teachers. The teachers were satisfied with the result of the contest. 10．The project had to be stopped because they were short of money. The project had to be stopped because of lacking money. Ⅲ.完成句子
1．Over the past half century，using_chemical_fertilizers_has_become_very_common _in_farming (在耕作中使用化肥已非常普遍)．
2．Many farmers welcomed them as_a_great_way_to_stop_crop_disease_and_increase_ production(把他们作为防治农作物病虫害和提高产量的重要手段)．
3．These chemicals in the food supply build_up_in_people’s_bodies_over_time (随着时间的推移会在人体中堆积)．
4．The farmers focus on keeping_their_soil_rich_and_free_of_disease (保持土壤肥沃并免受病害)．
5．With these discoveries，some farmers and many customers are_beginning_to_turn_to_ organic_farming(开始转向有机耕作)．
6．In_addition (另外)，fruit，vegetables and other food grown with chemical fertilizers usually grow_too_fast_to_be_full_of_much_nutrition (生长得过快而营养不足)．
7．They feel that this makes the soil in their fields richer in minerals and_so_more_fertile (因而也会更加肥沃)．
8．A healthy soil reduces disease and helps_crops_grow_strong_and_healthy (帮助农作物茁壮成长)．
9．Eating more vegetables might_not_always_be_good_for_us (并不总是对我们有好处)． 10．It_is_certain_to_be_healthy_and_safe (肯定是健康和安全的)for people’s health. Ⅳ.单项填空 1．It’s expensive.Can you reduce the price ________ a third？
A.to B．by C．of D．at 答案 B
解析 reduce(...)to...(把……)减少到……；reduce (...)by...把(……)减少了……。由题意可1
知应是把价格减少，故选B。
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2．—Why don’t we take a little break? —Didn’t we just have ________？
A．it B．that C．one D．this 答案 C
解析 one用于指代同类事物中的一个；it特指上文中提到的事物，即同一个；this这个；that那个。答句句意为：我们不是刚刚休息过吗？
3．At sea the wind can build ________ giant，powerful waves.
A．in B．up C．on D．down 答案 B
解析 句意为：在海上，风能形成巨大强劲的波浪。build up逐渐增强；建立；开发。build in安装；固定；build on建立于；指望；build down降低；衰减，三者皆不符合题意。
4．Each chapter concludes with a short ________. A．declaration B．fiction C．composition D．summary 答案 D
解析 句意为：每个章节都以简短的总结结束。summary总结；概要。declaration指正式的官方立场、态度等的声明；fiction虚构；小说；composition作文；写作。
5．—Do you believe me?
—________，I’ll believe ________ you say.
A．No；whatever B．Yes；however C．No；however D．Yes；whatever 答案 D
解析 首先由答语的后半句看出，应该使用肯定回答，由此排除A和C；又因答语中say后缺少宾语，所以只能用代词whatever作say的宾语。
6．Most homeless people are ________ with tents，food and drink.
A．supplied B．given C．offered D．burnt
答案 A
解析 supply sb. with sth.＝sb. be supplied with sth.向某人提供某物。
7．Her poor English often ________ misunderstanding when she first went to England many years ago.
A．arose from B．resulted from C．led to D．lay in 答案 C
解析 句意为：由于她的英语很差，因而许多年前她第一次去英国时常引起误会。lead to导致；造成(后果)。arise from(＝result from)起因于；lie in在于……；由于……。
8．It’s quite strange that the man sleeps with his mouth ________ and his eyes ________. A．closed；open B．closed；opened C．closing；open D．closing；opening 答案 A
解析 考查with复合结构：with＋宾语＋宾语补足语。closed和open两个形容词分别作his mouth和his eyes的宾补，用于说明宾语的状态。
9．________ the timely rain，our crops are saved. A．Thanking to B．Thanks to C．Thanking for D．Thanks for 答案 B
解析 thanks to幸亏；由于，是固定搭配。句意为：幸亏这场及时雨，我们的庄稼得救了。
10．John is the tallest boy in the class，________ according to himself. A．five foot eight as tall as B．as tall as five foot eight C．as five foot eight tall as D．as tall five foot eight as 答案 B
解析 five foot eight五英尺八英寸，放在as tall as后面表示John的身高。 11．He offered to ________ me with another ticket free ________ charge. A．give；from B．provide；from C．supply；from D．supply；of 答案 D
解析 空格后有with，第一空填supply，构成supply...with的搭配。第二空填of，free of charge意为“免费的”，作后置定语修饰another ticket。
12．I’m determined to climb the mountain，________ there may be a lot of difficulties. A．as if B．when C．even though D．since 答案 C
解析 用even though(即使)引导让步状语从句。
13．The forest guards often find campfires that have not been ________ completely. A．turned down B．put out C．put away D．turned over 答案 B
解析 A项当“拒绝(请求/建议)”或“降低(声音)”解；B项作“扑灭”解；C项意为“把……收起来放好”；D项的意思是“把……翻转过来”或“把……递交给……”。句意为：护林员经常发现没有被完全熄灭的露营火。故选B项。
14．________ with what he had already，the new stamps were not very interesting. A．Compare B．Comparing C．Compared D．To compare 答案 C
解析 compare常用结构为：compare A with B把A与B作比较；compare A to B把A比作B；compare with (to)．..和……比起来。句意为：和他已有的相比，这几张新邮票算不上有趣。
15．—What had made you so happy，Mary?
—Oh，I’ve just ________ an old friend I haven’t seen for years. A．come upon B．come in C．come out D．come up 答案 A
解析 come upon表示“偶然发现或遇见某人某物”；come in表示“进入”；come out表示“出现，显现”；come up表示(种子、植物等)长出地面；走近；被提出。句意为：——什么使你那么高兴，玛丽？——噢，我刚刚遇到一位多年未见的老朋友。
Ⅴ.短文改错
—英语必修4人教新课标nit 2同步练习答案 含答案
