01年5月托福听力文字

2020-03-03 17:26:30 来源：范文大全收藏下载本文

01年5月托福听力文字

Part A 部分

1.A: So are you going to see the student play tonight? 1。答:所以你会看到学生今晚玩吗? B: I doubt it.I\'m still getting over the flu. B:我怀疑它。我还得到了流感。 Q: What does the man mean?

男人什么意思? 2.A: Gordon needs to find another place to live.The apartment he rents now has been sold to a new owner.

2。答:戈登需要找到另一个地方住。他现在的公寓租金已经卖给了一个新的所有者。

B: He\'d better start looking right away.When all the students come back in a few weeks, he won\'t find any near the campus.

B:他最好马上开始寻找。当所有的学生在几周后回来,他找不到任何靠近校园。 Q: What does the woman suggest Gordon do?

问:什么是女士建议戈登做什么? 3.A: Mind if I borrow your Spanish workbook? 3。你介意我借你的西班牙工作簿吗? B: Not as long as I have it back in time to take to cla this evening. B:不,只要我有它回到时间今天晚上去类。 Q: What does the man mean?

男人什么意思? 4.A: You know that quiz we took in Dr.Turner\'s cla today? Did you know that she was going to give it to us?

4。A:你知道测验我们带在特纳博士今天的课吗?你知道她是要给我们吗? B: Actually I was just as surprised as you were.

B:事实上我只是好奇你是。

Q: What does the woman mean? 问:什么是女人意味着什么? 5.A: I don\'t know which color folder to use, white or brown? 5。我不知道哪个颜色文件夹使用,白色的或棕色的? B: What difference does it make? It\'s the content that\'s important. B:有什么不同呢?它的内容,是很重要的。 Q: What does the man mean?

男人什么意思? 6.A: You know I heard that profeor Martin\'s introduction to chemistry cla is way to demanding for first year students.They say it\'s as hard as courses for graduate students.

6。A:你知道我听说教授马丁的介绍化学类方法的要求一年级学生。他们说这是坚硬如研究生课程。

B: Yeah, but a lot of students will tell you otherwise.To talk to anyone who\'s gone on to the advanced course, like organic chemistry or who study chemistry in graduate school.They r really glad they started out with profeor Martin.

B:是的,但是许多学生都会告诉你否则。任何人说话,谁去高级课程,如有机化学或谁在研究生院学习化学。他们r真的很高兴他们开始教授马丁。 Q: What does the man imply about profeor Martin? 问:什么是男士暗示教授马丁? 7.A: Hey Mark, have you been able to sell your old piano yet?

7。A:嘿,马克,你可以卖掉你的旧钢琴吗? B: Ah, you were right, just posting notices on bulletin boards at a couple of supermarket wasn\'t enough.I think I\'ll have to place an advertisement in the local newspaper.

B:啊,你是对的,只是在公告栏上张贴告示几个超市还不够。我想我要去的地方在当地报纸上的广告。

Q: What does the man imply?

男人什么意思? 8.A: My back has been aching ever since I started playing tennis on the weekends. 8。答:我的后背一直在疼自从我开始在周末打网球。 B: Haven\'t you had that checked out yet? B:你还有没有检查看看吗? Q: What does the woman imply?

问:什么是女人意味着什么? 9.A: Hi, hum...I think something\'s wrong with the washing machine.It works and I just did my laundry but it makes some strange noises.Maybe you should call somebody to fix it.

9。A:嗨,哼哼…我觉得有些不对劲了洗衣机。它的工作原理和我只是做我的衣服,但它使一些奇怪的声音。也许你应该叫派人来修理。

B: Oh don\'t worry.somebody from the repair shop is already on the way over to take a look at it. B:哦,别担心。有人从修理部已在途中在看一看它。 Q: What does the man imply?

男人什么意思? 10.A; It\'s so thoughtful of you to offer to drop me off at the train station.are you sure it\'s not out of your way?

10。一个,太感谢您提供给我写信火车站下车。你肯定这不是你的路吗? B: Not at all.The station is really close to where I\'m going. B:没有。车站很接近,我要到哪里去。 Q:What does the man mean? 男人什么意思? 11.A: I\'m here about the job you advertised in the paper. 11。答:我在这里的工作,你在报纸广告上。

B; you need one of those forms over there, on the table next to the file cabinet. B;你需要其中的一个形式在那边,在桌子旁边的文件柜。 Q: What does the woman imply the man should do? 问:什么是女人意味着这个人应该做什么? 12.A:I know I ought to call home, but I\'ve got a plane to take and I may be late. 12。我知道我应该打电话回家,但我有一架飞机去,我可能会迟到。 B:But it only takes a minute. B:但是这只需要一分钟。

Q: What does the woman suggest the man do? 问:什么是女士建议男士做什么? 13.A: I have to drive in to Chicago next week.Do you have a map I could borrow? 13。我要开车去芝加哥在下周。你有地图可以借我吗? B: Sorry I don\'t, but I can pick one up for you while I\'m at the bookstore. B:对不起,我没有,但我可以为你拿起一个当我在书店。 Q: What does the man mean?

男人什么意思? 14.A:What did you think of the paintings that Ted was showing last week? 14。A:你怎么认为的画作,泰德是显示上周吗? B; I never made it to the exhibit.

B;我从来就没到展览。

Q: What does the woman mean? 问:什么是女人意味着什么? 15.A: Did you hear about the big show storm in Iowa yesterday? Three feet and twelve hours. 15。A:你听说大秀风暴在爱荷华州昨天?三英尺和十二个小时。

B: Yeah, and I hear it\'s headed our way.We\'re supposed to get the same thing tonight. B:是的,我听到它的走向我们的方式。我们应该得到同样的事情今晚。 Q: What does the woman mean?

问:什么是女人意味着什么? 16.A:U\'r joining us for dinner tonight, aren\'t u? 16。A:你依附今晚和我们一起吃饭,不是你? B: Oh, I\'m really sorry, but I had the wrong date for my geometry test.i just found out it\'s tomorrow and I need all the time I can get to prepare.

B:哦,我真的很抱歉,但是我有错误的日期为我的几何测试。我发现这是明天和我需要所有的时间我可以去准备。

Q: What does the woman imply?

问:什么是女人意味着什么? 17.A: I can\'t decide whether I should take physics now or wait till next semester.

17。答:我不能决定我是否应该采取物理现在还是等到下一学期。 B: you might as well最好 get it over with if you can. B:你可能well最好做完如果你能。

Q: What does the man suggest the woman do? 问:男人如何建议女人做什么? 18.A: you look different today.Did you get a haircut? 18。A:你今天看起来不一样。你有没有去理发吗? B: That\'s funny.your the third person to ask me that.But all I did was getting new frames for my eye glaes.

B:真有趣。你的第三个这么问我的人。但我所做的是让新框架为我的眼镜。 Q: What does the man imply? 男人什么意思? 19.A: Dr.Eliot, I\'d like you to check the way you calculated my grade for this test, I think you may have made a mistake in adding up the number of questions I got right.When I added them up I came up with those slightly higher grade than you did. 19。答:艾略特博士,我想让你检查你的方式计算我的分数在这个测试中,我认为你可能犯了一个错误在添加了许多问题我有权利。当我把它们加起来我想出了那些略高的等级比你。 B: I\'d be happy to check it for you.And if I made a mistake in determing the grade I\'ll be sure to correct it.Don\'t worry.

B:我很乐意为你检查它。如果我犯了一个错误的决定其品位我会一定要改正它。别担心。 Q: What does the man imply?

男人什么意思? 20.A: That last speaker was pretty boring.But he did make a few good points at the end. 20。那最后一人相当无聊。但他确实犯了几个好点结束。 B: Really? I didn\'t catch them.I must have dozed off for a minute. B:真的吗?我没赶上他们。我必须打起瞌睡来了一分钟。 Q: What does the woman mean?

问:什么是女人意味着什么? 21.A: If you run into Joan this afternoon, could you ask her to call me.I need that book back that i lent her yesterday.

21。答:如果你碰到琼今天下午,你能让她给我打电话。我需要那本书回来,我昨天借给她。 B: No need.I saw her this morning and I\'ve got it right here. B:不需要。我今天上午看到她了,我有它就在这里。 Q: What can be inferred from the conversation?

问:从对话中可以推断出什么? 22.A:I told my student today that I\'d be taking a sabbatical next semester.But they didn\'t seem very surprised.

22。我告诉我的学生,今天我将会休假下个学期。但是他们看起来并没有很惊讶。

B: Well, last week i let your plans slip to same my students.So more than likely the word got around.

B:嗯,上周我让你的计划,我的学生一样滑。因此很可能有这个词。 Q: What does the man explain to the woman?

问:男人如何解释的女人? 23.A:Mary, I\'ve got the bowls out for the stew.Do you think it needs any more pepper before I serve it?

23。A:玛丽,我有这个碗炖肉的。你认为它需要更多的胡椒在我为它吗? B: It\'s really quite nice an we did exactly what the recipe says.Why take a chance of ruining it? B:这真的是相当不错的一个我们完全按照食谱说。为什么要毁了它的机会? Q: What does the woman imply the man should do?

问:什么是女人意味着这个人应该做什么? 24.A: Those were such funny stories Tom told last night.He was like a totally different guy. 24。答:那些是这么有趣的故事汤姆昨晚说。他就像一个完全不同的人。

B: Yeah, really.He is normally so serious.What do you think brought all that out of him. B:是啊,真的。他通常是如此严重。你认为他的内心带来了所有。 Q: What does the woman imply? 问:什么是女人意味着什么? 25.A: Wow, look at all these old books on this shelf.They\'ve got to be at least one hundred years old.

25。哇,看看所有这些旧书放在这个架子上。他们必须至少一百岁。 I\'ll bet they worth a lot to collectors. 我敢打赌他们值得很多收藏家。 B; Well.they\'ve got a lot of sentimental value for me, but that\'s about it.

B;好。他们有很多的情感价值对我来说,但仅此而已。 Q: What does the man mean? 男人什么意思? 26.A: Hi, Susan, would you like to go our to eat with us? Several of us are going over to the Macardy\'s.

26。A:嗨,苏珊,你想去我们吃的和我们在一起吗?我们几个要到Macardy的。 B: Well, that sure beats sticking around here.Uhh...just let me pack up my things. B:嗯,那肯定比在这里逗留。喔…让我收拾我的东西。 Q: What is the woman going to do?

问:什么是女人打算做什么? 27.A: I thought you said you and your friends were just planning a small gathering.I could hear you from all the way up on the fourth floor of the building.

27。答:我以为你说你和你的朋友只是计划一个小型的聚会。我能听到你从那么高的第四层的建筑。

B:OH, Gee, I\'m really sorry.I gue we did get a little carried away, didn\'t we?

B:哦,哎呀,我真的很抱歉。我想我们确实有点忘乎所以了,不是吗? Q: What can be inferred from the conversations? 问:我们可以推断出从对话吗? 28.A: I kept looking for Mary at the seminar but never did see her.I can\'t imagine she forgot about it.She\'d be talking about it for weeks.

28。答:我一直找玛丽在研讨会上,但从来没有看到她。我无法想象她忘了它。她会谈论它数周。

B: Oh she didn\'t.It\'s just that she caught a really bad cold a couple of days ago.

B:哦,她没有。只是,她抓住了一个非常糟糕的寒冷的两天前。 Q: What can be inferred from the conversation? 问:从对话中可以推断出什么? 29.A: Our history presentation is Thursday.When do you want to get together to work on it? 29。答:我们的历史表示是星期四。当你想一起工作吗? B: Well, how about Monday ? That way we will still have enough time to figure out anything we are having trouble with.

B:嗯,星期一怎么样?这样,我们仍然有足够的时间想出任何我们有困难。 Q: What does the woman suggest they do? 问:什么是女士建议他们做什么? 30.A: Hi, thanks for your help.I gue I can handle the rest myself.But just in case, r you going to be around later?

30。嗨,谢谢你的帮助。我想我可以处理其余的我自己。但是为了以防,你会出现r之后? B: I don\'t know but you can always ask Judy.She \'s really good with these kinds of problems. B:我不知道,但你可以总是问朱迪。她真是好这些类型的问题。 Q: What does the woman imply? 问:什么是女人意味着什么?

Part B B部分 Q31-34 背负34 Hi, Janet, you are so lucky to be done with your final exams and term papers.I still have 2 more finals to take?

嗨,珍妮特,你是如此幸运,完成你的期末考试和学期论文。我还有两个决赛带吗? Really? 真的吗? Yeah, So what are you doing this summer, anything special?

是的,所以你在做这个夏天,什么特别的东西吗? Well, actually yeah.My parents have already liked taking my sister and me to different places in the United States.you know, places with historical significance.I gue they wanted to reinforce the stuff we learned in school about history.And so even though we are older now, they still do once in a while.Oh so where are you going this summer?

事实上,是的。我的父母已经喜欢带我妹妹和我在美国不同的地方。你知道,具有历史意义的地方。我猜他们想加强我们在学校里学到的东西有关的历史。所以即使我们都老了,他们仍然做过一段时间。哦,所以这个夏天你要去哪里? Well, this summer it\'s finally going to be Gettysburg. 嗯,这个夏天它最后会葛底斯堡。

Finally? you mean they never took you yet? I mean Gettysburg, it\'s probably the most famous civil war site in the country, It\'s only a couple of hours away.I think that would be one of the first place that they\'ve taken u.I have been there a couple of times.

最后?你的意思是他们从来没想过你吗?我的意思是葛底斯堡,它可能是最著名的内战网站在这个国家,只有几个小时路程。我认为这将是第一个地方,他们把你。我去过几次。

We were gonna to go about ten.well, no, it was exactly ten years ago, but I don\'t know, something happened, I cannot remember what.

我们要去大约10。哦,不,这正是10年前,但我不知道,发生了一些事情,我不能记住。 Something changed your plans? 一些改变你的计划吗? Yeah, don\'t ask me what it was, but we ended up not going anywhere that year.I hope that doesn\'t happen again this year.I wrote a paper about Gettysburg last semester for a history cla.I was taking.Well about the political situation in the United States right after the battle at Gettysburg, So I\'m eager to see the place.

是啊,别问我这是什么,但最终我们哪儿也不去那一年。我希望今年以后不会再发生那样的事。我写了一篇关于葛底斯堡上学期的历史课。我正在。对政治形势在美国对战斗结束后在葛底斯堡,所以我渴望看到的地方。

31.What are the students mainly discuing? 31。什么是学生主要讨论吗? 32.What does the man find surprising about the woman? 32。男人如何找到令人感到惊讶的女人? 33.What is the woman unable to remember? 33。什么是女人无法记得吗? 34.What does the woman imply about Gettysburg? 34。什么是女人意味着葛底斯堡吗? Q35-39 Q35-39 What are you doing? 你在做什么呢? I\'m ordering some filing cabinet out of a catalog.

我订购一些文件柜的目录。 What do you need them for? 你需要它们? There\'s so much stuff piling up in my dormitory room.If I don\'t do something soon, I won\'t be able to move in there.

有这么多的东西堆积在我的宿舍。如果我不做一些不久,我不能移动在那里。 Do you usually order from a catalog? 你通常订单从一个目录吗? Sometimes.Why?

有时。为什么? OH, it\'s just in the history cla today we were talking about how the catalog sales busine first got started in the US.A Chicago retailer, Montgomery Ward started it in the late 1800s.It was really popular among farmers.it was difficult for them to make it to the big city stores so they ordered from catalogs.

哦,它只是在历史课今天我们谈论的是如何目录销售业务在美国第一次开始。芝加哥一家零售商,蒙哥马利沃德开始它在1800年代后期。它真的是深受农民。这是他们很难使它到大城市商店,他们命令从目录。

Was Ward the only one in the busine? 沃德是唯一一个在业务吗? At first, but another person named Richard Sears started his own catalog after he heard how much money Ward was making.

起初,但另一个人名叫理查德·西尔斯开始自己的目录后,他听到病房使多少钱。 What made them so popular? 是什么让他们如此受欢迎? Farmers trusted Ward and Sears for one thing.They delivered the products the farmers paid for and even refunded the price of things the farmers weren\'t satisfied with.The catalog became so popular some countries school teachers even used them as textbooks.

农民们信任的病房和西尔斯一方面。他们交付产品的农民支付,甚至退还价格事情农民不满意。目录变得如此流行的一些国家的学校老师甚至用它们作为教科书。 Textbooks?

教科书吗? Yeah, Students practice spelling the names and adding up the prices of things in the catalogs. 是的,学生练习拼写名称和添加了这些东西的价格在目录。 Was everybody that thrilled about it? 是大家,兴奋呢? That\'s doubtful.Say they drove some small store owners out of busine.Sears and Ward sold stuff in such large quantities.They were able to undercut the prices at some small family owned stores.

这是可疑的。说他们开车一些小商店所有者破产。西尔斯和沃德在这样大量出售的东西。他们能够削弱了价格在一些小型家族拥有的商店。 35.What is the conversation mainly about? 35。什么是谈话主要是什么? 36.Why was the woman reading a catalog?

36。为什么女人读目录吗? 37.Who were the main customers of Sears and Ward\'s busine? 37。谁是主要的客户和业务的西尔斯沃德的吗? 38.What unusual way were the catalog used?

38。什么不寻常的方式是使用的目录吗? 39.What was one of the negative effects of the catalog busine? 39。什么是一个负面影响的目录生意吗?

Part C 部分C Q40-42

各个桌子都走到42 The birds you see here in this slide are peregrine falcons.These birds represent a succe story among animals on the endanger species list..In the 1970s, the peregrine falcons almost disappeared as a result of the contamination of the food chain by the DDT in pesticide.The presence of the poison in their systems resulted in eggs too weak to support the incubating chicks.Their remarkable recovery is a result of the ban of DDT as a pesticide, aggreive captive feeding programs and their own resiliency.the peregrine falcon is one of the fastest birds alive.They\'ve been clocked at 140 to 200 miles per hour in succeful pursuit of pray.In addition to speed, these birds fly directly into head winds and they are capable of flying more than 600 miles per day with favorable tail winds.today with the sophistication of telemetry, the speeds of these birds can be tracked by orbiting satellites, by means of transmitters attached to the bird.For example , peregrine falcons stage in warmer climate, in other words, they spend time in the southern US over changes preparing them to breed in the Arctic.Then they migrate north to the much colder Arctic regions.Birds have been tracked from Texas in late April to their nesting ground in Alaska, Canada and Greenland.Now let\'s move on to another species of birds, the bald eagles.

你在这里看到的鸟在这个幻灯片是隼。这些鸟代表一个成功故事中的动物危险物种的名单上。在1970年代,隼几乎消失由于污染食物链的DDT农药。存在的毒药在他们的系统导致鸡蛋太弱支持孵化幼鸟。他们的非凡的经济复苏是由于这个禁令作为杀虫剂DDT,激进的俘虏喂养计划和自己的弹性。猎鹰在是一个活着的最快的鸟。他们一直在时速为140到200英里每小时在成功的追求祈祷。除了速度,这些鸟类直接飞进头风和他们能够飞行600多英里每一天,有利的尾风。今天与复杂的遥测,这些鸟类的速度可以追踪的轨道卫星,通过发射器附加到这只鸟。例如,在温暖的气候隼阶段,换句话说,他们把时间花在美国南部在变化准备它们繁殖在北极。然后他们向北迁徙到北极地区的冷多了。来自德克萨斯州的鸟还被跟踪在4月底他们筑巢地在阿拉斯加,加拿大和格陵兰岛。现在我们转到另一个物种的鸟类,秃头鹰。

40 What is the talk mainly about? 40什么是谈话主要是什么? 41.According to the paage, what makes the peregrine falcon a good hunter? 41。根据文章的意思,是什么让一个好猎手的游隼? 42.How did biologists track peregrine falcons over long distances? 42。生物学家们是如何跟踪远距离游隼? falcon 猎鹰

Q43-46

自动46 Ok, so in our last cla we were discuing big bands swing music.You remember this was a kind of dance music with a steady rhythm.But today we deal with music played by smaller jazz bands.It\'s called bebop may use all sorts of new types of rhythms, some of them very irregular.We\'ll talk more about that later.But first I want to told about some of the social elements that i believe contributed to the development of bebop music.To do this, we have to look at when bebop arose and started becoming so popular, which was from the late 1930s through the 1940s, from the time of the environment for bebop music was the decline of the US economy.During the great depreion.the economy suffered tremendously.And fewer people had money to spend on entertainment.Then during the 2nd World War the government imposed a new tax on public entertainment, what you might call performance tax.The government collected money on performances that included any types of acting, dancing or singing, but not instrumental music.So to avoid this new tax, some jazz bands stop using singer altogether.They started relying on the creativity of the instrumentalist to attract audiences.This was what bebop bands did.Now remember a lot of bands have singers.So the instrumentalists simply played in the background and had occasional solos while the singer sang the melody to the songs, but not bebop bands.So the instrumentalists had much more freedom to be creative.So they experimented, playing the music faster and using new irregular sorts of rhythms.

好的,所以在我们的最后一节课我们讨论大乐团摇摆音乐。你记得这是一种舞蹈音乐具有稳定的节奏。但今天我们处理由较小的爵士乐队演奏的音乐。这叫做比波普爵士乐可以使用各种各样的新类型的节奏,其中的一些非常不规则。我们以后再讨论,之后。但是首先我要讲一些社交元素,我相信做的贡献比波普爵士乐音乐。要做到这一点,我们必须看看当比波普爵士乐起来,开始变得如此受欢迎,从1930年代到1940年代,由当时的环境比波普爵士乐音乐是美国经济的衰落。在大萧条时期。经济大受伤害。和更少的人钱花费在娱乐。然后在二次世界大战期间,政府实施了新的税收在公共娱乐,你可以叫性能税。政府收集钱表演包括任何类型的表演,跳舞或唱歌,但不是器乐。所以为了避免这种新税,一些爵士乐队歌手完全停止使用。他们开始依靠创造力的乐器演奏家来吸引观众。这是什么乐队并比波普爵士乐。现在记住很多乐队歌手。所以乐器演奏家演奏简单的背景和偶尔有独唱歌手唱歌时的歌曲的旋律,但并不比波普爵士乐乐队。所以工具主义者有更多的自由来发挥创意。所以他们尝试、玩音乐速度更快,使用新的不规则种类的节奏。

43.What is the talk mainly about? 43。什么是谈话主要是什么? 44.How did the bebop bands avoid the performance tax?

44。如何避免性能比波普爵士乐乐队税吗? 45 Why does the profeor mention the decline of the US economy during the great depreion? 45为什么教授提到衰落的美国经济大萧条期间的吗? 46.What does the profeor describe as a significant characteristic of bebop music?

46。教授描述什么为一个重要的特点比波普爵士乐音乐吗?

Q47-50 Q47-50 UR profeor has asked me to talk to you today about the topic that should be of real concern to civil engineers: the erosion of the US beaches.Let me start with some statistics.Did u know that 90% of the coast in this country is eroding, on the gulf of Mexico for instance, erosion averages 4 to 5 feet per year.Over the past 20 years, there has been an increase in building along the coast, even though geologists and environmentalists have been warning communities about problems like erosion.Someway communities have tried to protect their building and roads and to build seawalls.However geologists have found that such stabilizing structure actually speed up the destruction of the beaches.These beaches with seawalls, called stabilized beaches, are much narrower than beaches without them.you may wonder how seawalls speed up beach lo.The explanations is simple.If the flow of the beaches is gentle, the water energy is leened as it washes up along the shore.It is reduced even more that returns to the sea so it doesn\'t carry back much sand.ON the other hand, when the water hit the nearly vertical face of the seawall.it goes straight back to the sea with the full force of its energy and it carries back a great deal of sand.Because of the real risk of losing beaches, many geologists support a ban on all types of stabilizing construction on shore lines.

你的教授要我今天跟你谈谈关于这个话题,应该是真正关注的土木工程师:侵蚀美国海滩。让我从一些统计数据。你是知道的,90%的在这个国家的海岸侵蚀,在墨西哥湾例如,侵蚀平均每年4至5英尺。在过去的20年里,一直在增加建筑沿着海岸,尽管地质学家和环保主义者一直警告社区问题像侵蚀。好歹社区试图保护他们的建筑和道路和建造海堤。然而地质学家们发现这样的稳定结构实际上加速破坏的海滩。这些海滩和海堤,称为稳定海滩,都远远小于海滩没有它们。你可能想知道海堤加快海滩损失。这个解释很简单。如果流的海滩是温柔的,水能量是减弱了,因为它洗了岸边。它减少了更多,回到大海,这样它就不会拿回多砂。另一方面,当水冲击的几近垂直的脸的海堤。它径直回到大海的全部力量的能源和它携带回大量的沙子。因为真正的风险失去海滩,许多地质学家支持禁止所有类型的稳定结构在岸上行。

47.What is the speaker mainly discuing? 47。什么是演讲者主要讨论吗? 48.Why do communities build seawalls? 48。为什么社区建设海堤吗? 49.How does a gently sloping beach help prevent erosion? 49。轻轻地斜海滩如何帮助防止侵蚀? 50.What would the speaker probably advise engineers to do? 50。什么将演讲者可能建议工程师要做的?