Passenger ships,trade ships,and fishing boats are a normal part of life on the open sea.However,all their activity creates a great deal of noise underwater.Scientists from the United States and Canada recently reported their observations(觀察) that the ocean is getting noisier.
Scientists at the University of Victoria have studied the recordings recorded with equipment placed underwater near the busy shipping lanes off Vancouver Island in Canada.They say engine(發(fā)動(dòng)機(jī)) noise is continuous during the day,and a little less strong at night.
Scientists say it is likely that whales must call out more loudly to be heard over this noise.The noise could make it more difficult for orca whales to find food.The orcas find fish by producing clicking sounds and other noises.Loud engine noise could beinterfering withtheir efforts.
Michael Jasny is a policy expert for the Natural Resources Defense Council.He says the rise of underwater noise is limiting the ability of whales to communicate.
Shipping noise falls across the same frequencies(頻率) that these animals use for all their vital(生死攸關(guān)的) behaviors - for feeding,for finding mates,for avoiding predators(捕食者) and for going ahead.
Mr.Jasny says sound travels very effectively underwater.And it is not just whales he is worried about.
"The whole web of life in the oceans depends on sound.And as more and more research has been done,it's been very clear that what we have on our hands is really a major problem.It's a serious problem.It's a global problem.Fortunately,in shipping we have a problem that has a solution."
One answer is to design quieter ships.America's National Oceanic and Atmospheric Administration,or NOAA,has four new ships that are made to be quieter.Michael Bahtiarian works for Noise Control Engineering,the company which helped design the boats.
Mr.Bahtiarian says the main source of noise pollution is the propeller(螺旋槳).Better shaped propellers and ship designs can help to reduce noise.NOAA's ships also have costly engines,which produce less noise.Mr.Bahtiarian says the technology to make quieter ships does exist and has been used in the military for some time.
(1)The underlined phrase " interfering with" in Paragraph 3 probably means BB.
A.controlling
B.disturbing
C.encouraging
D.stopping
(2)We can tell that whales depend on sound for AA.
A.communicating with their mates
B.stopping predators from fishing
C.fighting against the shipping noise
D.telling the night time from the day
(3)From the passage we can learn that CC.
A.expensive engines produce less noise in the ocean
B.people should stop making big ships in order to save whales
C.the other animals in the ocean also depend on sound for living
D.it is difficult to find a way to stop noise pollution in the ocean
(4)What is the best title for the passage? AA
A.The ocean is getting noisier.
B.Whales and ships in the ocean.
C.Whales are facing a serious problem.
D.Quiet ships are needed in the ocean.
【答案】B;A;C;A
【解答】
【點(diǎn)評(píng)】
聲明:本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有,未經(jīng)書面同意,不得復(fù)制發(fā)布。
發(fā)布:2024/6/27 10:35:59組卷:4引用:1難度:0.5
相似題
-
1.According to a recent report,about 15% of the people in the UK are members of gyms.But are they more likely to be fit?
A study found that gym members were 14 times more active than people who didn't belong to any health club.Gym members did six hours more exercise a week,and this activity did make them fitter than non- gym members.They also spent less time sitting down every day than non- gym members.The results were the same for men and women.
The study included 405 people between the ages of 30 and 64,and the main characteristics of those who were gym members were the same as those who were not. "But gym members did more training than non-gym members," said the lead author,Elizabeth Schroeder of the University of Illinois.While it might seem clear that gym members exercise more and are healthier than non-gym members,Schroeder says this has not been directly shown before.However,the study is only designed to show a tie between gym membership and more exercise.It may be that active people like to join gyms.In the study,people who exercised as much as gym members were also in good health.
You can get the same benefits wherever you exercise.This study shows a gym membership can make you do more exercise,but other research shows that exercising outside has other help.Outdoor activity can make you feel happy about life,especially if you run through a forest.
Outdoor exercise is also more interesting than going to the gym.The first five minutes of outdoor exercise is especially helpful in making people feel good.But Schroeder says that a gym may also encourage greater exercise because it can be social and fun.
(1)What did the new study find out?
A.British people are crazy about the gym.
B.Gym exercise is better than outdoor exercise.
C.Gym membership can make us healthier.
D.Gym is necessary for our daily life.
(2)In the study,researchers studied
A.people between aged 30 and 64
B.the same number of men and women
C.405 gym members
D.people with the same characteristics
(3)The study is aimed to build a tie between and .
A.a(chǎn)ctive people;more gym exercise
B.more exercise;health
C.gym membership;more exercise
D.happiness;more exercise
(4)Which statement will Elizabeth Schroeder agree with?
A.Women should do more gym exercise.
B.We should be careful with outdoor training.
C.Outdoor exercise is better than gym exercise.
D.We may make great exercise if we go to the gym.發(fā)布:2025/1/5 9:30:5組卷:1引用:1難度:0.2 -
2.Is it possible to have a diet that s both healthy and friendly to our planet?Here are answers to your eco-friendly food questions.
Does what I eat influence climate change?
Yes.The world's food system is responsible for about one quarter of the planet -- warming greenhouse gases that humans produce each year.That includes raising and harvesting all the plants,animals,and animal products we eat,as well as processing,packaging,and shipping food to markets all over the world.
Which foods have the largest influence?
In general,beef and lamb have the biggest climate footprint per gram of protein while plant- based foods like beans,rice,corn and wheat have the smallest influence.Pork,chicken,eggs are somewhere in the middle.
Is there a simple food choice I can make?
Studies have shown that people who eat a meat-heavy diet can reduce their food- related footprint by one third or more by moving to a vegan diet- no meat,dairy,or eggs.If you don't want to go that far,just eat less meat.
Can I really make a difference to our planet
We need more food to feed the world's growing population.One person alone can make only a tiny djye.aiference.If many people make changes to their diets,that will start to add up.It will make a greater difference if the world's heaviest meat eaters make some changes to their diets.
(1)According to the passage,which foods have the smallest influence on our planet?
A.Beef and lamb.
B.Rice and corn.
C.Chicken and pork.
D.Beans and beef.
(2)According to the passage,which of the following is TRUE?
A.One person alone makes no difference to our planet.
B.Shipping food all over the world has no influence on climate change.
C.All the planet-warming greenhouse gases come from the food system.
D.Meat eaters can reduce their food-related footprint by eating less meat.
(3)What is the best title for the passage?
A.How to produce more meat
B.How to make more plant-based foods
C.How to eat better for the planet
D.How to ask eco-friendly food questions發(fā)布:2025/1/5 9:30:5組卷:0引用:1難度:0.2 -
3.Many countries are fighting with food waste.What are they doing to stop it?
China has been starting a nationwide campaign called "Clear Your Plate" since 2013.This year,some restaurants are encouraging people to order food using the formula "N-1"."N"stands for the number of diners at a table.If there are 6 people at your table,you only order 5 dishes. In 2016,F(xiàn)rance passed a law that stops grocery stores from throwing away unsold food.If it's still safe to eat,the food must be given away to charity;If not,it goes to farmers for use as animal feed. In 2019,the US said it encourages food companies to use the phrase "best if used by" for date labeling.This helps shoppers better understand that they don't need to throw food out after the printed date passes if the food is stored correctly. In Japan,there are many food banks.People and grocery stores can give away some food to them and they will provide the food to those in need. In 2016,South Korea started to ask people to pay fees for throwing away food.There are scales' on trash bins that are used to weigh the food.One ton of food waste costs 1.5 million won (8,700 yuan).
A.4
B.5
C.6
D.7
(2)Which of the following is TRUE according to the passage?
A.In France,people and grocery stores can give away some food to food banks.
B.The US passed a law to stop grocery stores from throwing away unsold food.
C.Japan has been starting a nationwide campaign called "Clear Your Plate".
D.People in South Korea are asked to pay fees for throwing away food.
(3)Where does this passage most probably come from?
A.The advertisement.
B.The newspaper.
C.The guide book.
D.The science book.發(fā)布:2025/1/5 9:30:5組卷:3引用:1難度:0.2
把好題分享給你的好友吧~~