1、Unit 2 第 3 课时 Learning about language.根据汉语意思完成句子A)1我遗憾地告诉你，你考试没有及格。I regret_ _ _that you failed in the exam.2他很后悔对她讲那件事。He regrets_ _ _to her.3我后悔在一辆小汽车上花这么多钱。I regret_ _ _ _on a car.B)1They _ _(把我都弄糊涂了)by asking so many questions.2Dont _Austria_(把跟弄混淆)Australia.3The question is so hard, and were _
2、_(感到困惑) 4I _ _ _ _ _(把她和她妹妹认错 )because they are so alike.5To our surprise he made _ _ _(莫名其妙的讲话)at the meeting.答案：A)1.to tell you 2.telling the matter 3.spending so much moneyB)1.confused me 2.confuse; and/with 3.getting confused4confuse her with her sister 5.a confusing speech.专项语法练习1(2007辽宁)You ca
3、nt imagine what difficulty we had_home in the snowstorm.Awalked BwalkCto walk Dwalking答案：D 句中句式为 have difficulty(in)doing sth.。2(2007陕西)As a result of the serious flood, two thirds of the buildings in the area_.Aneed repairing Bneeds to repaidCneeds repaining Dneed to repair答案：A 分数后所接的为复数名词，故谓语动词要用复
4、数形式；在表示“主语需要被”时，用 need doing 或 need to be done。3(2007上海春33)All the staff in our company are considering_to city centre for the fashion show.Ato go BgoingCto have gone Dhaving gone答案：B 本题题意：我们公司的全体职员正考虑到市中心去参加时装表演会。consider sth./doing sth.表示“考虑( 做)某事” ；例如：We are considering going to Canada.我们正考虑到加拿大去
5、。4(2007上海春42)If your race car isnt insured, you may_losing everything when it hits something solid.Adelay BdenyCavoid Drisk答案：D 题意：如果你的赛车没有上保险的话，一旦它与坚硬的物体相撞，你可能冒着失去一切的风险。risk 表示“冒的风险(或危险)” ；例如：Weve been advised not to risk traveling in these conditions.我们收到忠告，在这种条件下不要冒险出行。5(2006湖南28)If you think tha
6、t treating a woman well means always_her permission for things, think again.Agets BgotCto get Dgetting答案：D 题意：如果你认为善待一位女士就意味着事事总要得到她的许可，那么你要三思。动词 mean 后接动名词作宾语。表示“意味着，产生的结果” ；例如：This new order will mean working overtime.这新订单一来，我们就得加班加点。 6(2006江苏32)There is a story here in the paper about a 110yearol
7、d man.My goodness! I cant imagine_that old.Ato be Bto have beenCbeing Dhaving been答案：C 题意：“在报纸的这个版面有篇关于一位 110 岁老人的新闻报道。 ”“天哪！我很难想象他能活到这么老。 ”动词 imagine 后接动名词作宾语。例如：She imagined walking into the office and telling everyone what she thought of them.她想象自己走进办公室，对每个人都说出自己对他们的看法。7(2006陕西13)It is difficult
8、to imagine his_the decision without any consideration.Aaccept BacceptingCto accept Daccepted答案：B 题意：很难想象他没做任何考虑就接受了这个决议。本题考查动词 imagine后接动名词或动名词的复合结构作宾语。例如：Would you ever have imagined him/his becoming a politician？你怎能料想到他竟当上政治家了？8(2006陕西26)Isnt it time you got down to_the papers?Amark Bbe markedCbei
9、ng marked Dmarking答案：D 题意：难道你还不该认真阅卷吗？ get down to sth./doing sth.表示“开始做某事；开始认真注意(或对待)某事” ；其中 to 为介词，后面应该接动名词作宾语；此外，逻辑主语 you 和 mark 构成逻辑上的主动关系，所以用动名词的一般式。例如：Its time I got down to thinking about that essay.我该认真思考一下那篇论文了。9(2006北京35)I cant stand_with Jane in the same office. She just refuses_talking w
10、hile she works.Aworking; stopping Bto work; stoppingCworking; to stop Dto work; to stop答案：C 题意：我无法忍受和简在同一个办公室内工作。她在工作期间总是喋喋不休。cant stand doing sth.表示“不能容忍做某事” ；例如：She cant stand being kept waiting.叫她等着，她会受不了。refuse to do sth.表示“拒绝做某事” ；例如： She refused to accept that there was a problem.她拒不承认有问题存在。10
11、The police advise_out alone at night for the moment.Anot to go Bnot goingCgoing not Dnot to have gone答案：B advise 后接名词或动名词作宾语；表示否定含义时，not 需放在动名词之前。.阅读理解阅读下列短文，从每题所给的四个选项(A、B、C 和 D)中，选出最佳选项。AThere are lots of insects that farmers hate. But there also are some they like. They protect crops against dama
12、ge from other insects. A good example is the lady beetle, which is also known as the ladybug(瓢虫)Lady beetle are a natural control for aphids(蚜虫). Lady beetles are red, orange or black. They often have black spots, though some have light colored spots. Different kinds of lady beetles have different n
13、umbers of spots. There are lady beetles with four, five, seven and fourteen spots.Many of the wellknown kinds of lady beetles come from Asia or Europe. They now are common throughout the United States.American scientists imported one kind of lady beetle, the multicolored Asian lady beetle, as early
14、as 1916. They released them as an attempt to control some kinds of insects. Over the years, the beetle has become established, possibly helped by some that arrived with imported plants on ships.Experts say over 450 kinds of lady beetles are found in North America. Some are native to the area. Others
15、 have been brought from other places. Almost all are helpful to farmers.The Asian lady beetles now in the United States probably came from Japan. The Asian lady beetle eats aphids that damage crops like soybeans, fruits and berries.In the southern United States, Asian lady beetles have reduced the n
16、eed for farmers to use pestkilling poisons on pecan trees. This popular tree nut suffers from aphids and other pests that the lady beetles eat.But some people say the Asian lady beetle has itself become a pest. They worry that the lady beetles may eat their lateautumn fruit crops.Experts say Asian l
17、ady beetles may appear in large numbers in some years. But they say the insects are too helpful to be considered as pests.1What do ladybugs look like?AAll kinds of ladybugs are of the same color.BMost of them are red, orange or black.CThey each have the same number of spots on them.DMost of them hav
18、e fourteen spots.答案：B 由第二段第二句可知 B 项正确，同时排除 A 项；由第二段第四句可知 C 项错误；D 项文中没有提及。2Asian ladybugs have been in the United States for_.Anine decades Bhundreds of yearsChalf a century Da century答案：A 由第四段第一句可知自 1916 年至今应为 90 多年，但离一个世纪还有好几年，所以 A 项为最佳选项。3According to the passage the following statements are suppo
19、rted EXCEPT_.Athere are more than 450 kinds of ladybugs in North America, including native onesBonly some imported ladybugs are helpful to the local plantsCsoybeans, fruits and berries are favorites of aphids.Dpecan trees are common in the south of America答案：B 由第五段最后一句可知 B 项与文章内容相悖。其余选项所述内容都与文章内容相符。
20、4According to the experts, ladybugs are_.Amore helpful than considered as petsBmore pests than helpful insectsChelpful as well as destructiveDare more destructive than helpful答案：A 根据末段最后一句可知，专家的观点是瓢虫益大于弊，不应被视为害虫。BIf you want your land to keep fertile, you must try to stop soil from being carried awa
21、y by water or winds. When soil is taken away by flowing water or blowing winds, we call it soil erosion. Ways have been found to stop soil erosion, and this is known as soil conservation. One way of stopping soil erosion is to grow small plants such as grasses. These plants are referred to as cover
22、crops, whose roots hold the soil tightly together. The rain water cannot wash away the soil. When trees and tall bushes are planted at the edges of an open field, soil erosion by strong winds cannot take place. The trees and bushes, which act as a very big and firm wall, protect the open land from t
23、he winds. The way to stop soil erosion on slopes is to build terraces on the slope of hillside and mountainside. When the slope of a hillside is cut into“steps”， water carrying soil cannot run straight down the terraces, which are used to slow down the speed of the flowing water containing much soil
24、 in it. In this way most of the soil in the water is left behind on the terraces. Much soil in it is kept.5What take place in soil erosion?AFlood happens to the fertile land.BA large quantity of the earth wears away gradually.CTerraces are built on the slope of hillside or mountainside.DPlants are g
25、rown to protect the open land.答案：B 由文章首句可知由于土壤风化，土壤中的大量有机物流失。6Besides afforestation, another method to fight against soil erosion is to_.Abuild terraces Bbuild wallsCplant trees Dplant flowers答案：A 由文中“The way to stop soil erosion on slopes is to build terraces”可知修建梯田是防止土壤风化的又一举措。7Trees and tall bush
26、es are planted around an open field_.Abecause their roots hold soil tightlyBto stop soil from being blown away by windsCbecause soil erosion causes terrible damage to cropsDto keep the ecological balance答案：B 由文中第七句可知，把树木和高灌木丛种植在空地上可以有效防止土壤风化的发生。8Which of the following is the best title of the passage?AWhat Causes Soil ErosionBThe Importance of AfforestationCRain Erosion and Wind ErosionDErosion and the Ways to Fight Against Erosions答案：D 文章主要讲述了土壤风化以及预防的措施，故 D 项概括较为全面。
