Questions 1 to 4 are based on the lecture youve just heard.
1.
A) The increase in beachfront property value.
B) An experimental engineering project.
C) The erosion of coastal areas.
D) How to build seawalls.
2.
A) To protect beachfront property.
B) To reduce the traffic on beach roads.
C) To provide privacy for homeowners.
D) To define property limits.
3.
A) By sending water directly back to sea with great force.
B) By reducing wave energy.
C) By reducing beach width.
D) By stabilizing beachfront construction.
4.
A) Protect roads along the shore.
B) Build on beaches with seawalls.
C) Add sand to beaches with seawalls.
D) Stop building seawalls.
Questions 5 to 7 are based on the lecture youve just heard.
5.
A) A kind of exchange.
B) A kind of business.
C) A commercialized exchange.
D) An international friendship association.
6.
A) Free food and lodging.
B) Learning English.
C) Staying with English families.
D) Meeting young people.
7.
A) Most of them are satisfied.
B) Most of them are very happy.
C) Most of them are unhappy.
D) Most of them are not satisfied.
C C B D C D A
听力原文:
Passage 1
Your professor has asked me to talk to you today about the topic that should be of real concern to civil engineers: the erosion of US beaches. Let me start with some statistics. Did you 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 structures 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 loss. The explanation is simple. If the flow of the beaches is gentle, the water energy is lessened as it washes up along the shore. It is reduced even more when it returns to the sea as it doesnt carry back much sand. On the other hand, when the water hits 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.
Questions 1 to 4 are based on the lecture youve just heard.
1. What is the speaker mainly discussing?
2. Why do communities build seawalls?
3. How does a gently sloping beach help prevent erosion?
4. What would the speaker probably advise engineers to do?
国内英语资讯:Chinese FM sees Asia-Europe Meeting new path in intl relations
国内英语资讯:Beijing detains 18 after suburban apartment fire
The Eye-contact in Communication 交流中的眼神接触
国际英语资讯:Putin, Trump stress diplomatic solution to Korean Peninsula issue -- Kremlin
全球五个最长寿国家:西班牙人靠午休
女性择偶时最看重的到底是什么?排在第一位的是……
国内英语资讯:Xi writes to traveling troupe in N. Chinas Inner Mongolia
国内英语资讯:No relaxation in property curbs: authorities
国内英语资讯:Boeing 747s finally find buyers on Taobao
国内英语资讯:China ready to further boost cooperation with ASEAN: FM
国际英语资讯:Irans top leader says collapse of IS is defeat of U.S. in region
张靓颖挤下霉霉和水果姐?维密表演嘉宾公布!
德国政府要求家长“毁掉”孩子的智能手表
腾讯市值突破5000亿美元 超过脸书成为全球第五
白宫确认总统每周广播讲话暂停
美文赏析:有一种魅力,叫做修养
体坛英语资讯:Kenya s Obiri targets quest to recapture World Indoor circuit
听说你一个人住?这些独居安全窍门要记好
国内英语资讯:Restoration of China-Japan trust requires sustained efforts: Chinese premier
京东正式进军房地产市场 覆盖超20座城市
替罪羊(scapegoat)、败家羊(black sheep),为何英语中背锅的总是羊
专家:2018年全球强震或增至20次 这些地区的民众要警惕
2017年12月英语六级作文范文:考研热潮
国际英语资讯:Russian nuclear corp. denies causing radioactive pollution
Food Choice 食品选择
体坛英语资讯:Pulis sacked as West Bromwich head coach (updated)
中国最美图书馆火到国外,外媒纷纷为它打call!
三星指纹传感爆出重大漏洞
39人命丧货柜车 英警方正在核实遇难者身份
国际英语资讯:Zimbabwean President Mugabe resigns
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |