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521．我妹妹在舞台上感到有点紧张，因为有那么多人在看她。
My sister felt a little nervous on the stage with so many peopleher.发布：2024/5/23 20:38:36组卷：4引用：2难度：0.5522．The film，Deep into the Sea，was replayed on CCTV's documentary c
.发布：2024/5/23 20:38:36组卷：0引用：0难度：0.7523．
adj.模糊不清的；难以区分的发布：2024/5/23 20:38:36组卷：3引用：1难度：0.8524．Last Saturday we invited Professor Zhang to give us a report.His report helps us a lot with our English learning.
发布：2024/5/23 20:38:36组卷：1引用：0难度：0.7525．The company has been developing rapidly these years，
（rate）as the first-class in China.发布：2024/5/23 20:38:36组卷：4引用：2难度：0.7526．Some scientists say that animals in the oceans are increasingly threatened by noise pollution caused by human beings.
The noise that affects sea creatures comes from a number of human activities. （1）Such noises are added to natural sounds.These sounds include the breaking of ice fields，underwater earthquakes，and sounds made by animals themselves.
Decibels（分贝） measured in water are different from those measured on land.A noise of one hundred and twenty decibels on land causes pain to human ears. （2）
Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans.（3）A team of American and Canadian scientists discovered that louder noises can seriously injure some animals.The research team found that powerful underwater explosions were causing whales in the area to lose their hearing.（4）Some of the whales even died.The explosions had caused their ears to bleed and become infected.
Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels.They say such a limit would mean an end to important industrial and scientific research.
Scientists do not know how much and what kinds of noises are harmful to ocean animals.（5）They want to prevent noises from harming creatures in the ocean.A.They have observed that noises at that level can frighten and confuse whales.
B.However，many scientists suspect that noise is a greater danger than they believed.
C.It's time to set a noise limit in water to protect ocean animals from harmful noises.
D.In water，a decibel level of one hundred and ninety-five would have the same effect.
E.This seriously affected the whales' ability to exchange information and find their way.
F.It is caused mainly by industrial underwater explosions，ocean drilling，and ship engines.
G.Different ocean animals have different reactions to a noise of one hundred and twenty decibels.发布：2024/5/23 20:38:36组卷：8引用：1难度：0.9527．
n.咨询；咨询会→vt.咨询；请教→n．顾问发布：2024/5/23 20:38:36组卷：1引用：1难度：0.8528．
（1）Modern methods of tracking polar bear populationsreduce hire base dress expect construct decorate employ locate associate only since -the mid-1980s.
（2）If she thought youimproperly，she sent you straight back home to change your clothes.
（3）Chinese love their "Lucky Bamboo" plants because theywith health，abundance and a happy home.
（4）Through the Summer Employment Opportunities programme，studentseach year in a variety of summer positions.
（5）The beauty of rereading lies in the idea that our bond with the workon our present mental register（精神状态）.
（6）The lost property office，which is open Monday to Friday 7：30 am to 5：00 pm，at Roma Street station.
（7）In India，particularly outside cities，young womento move in with their husband's family when they get married.
（8）When he saw the mists rising from the river and the soft clouds surrounding the mountain tops，heto tears.
（9）A recent study discovered that employees were shown to be 15% more productive when their workplaceswith houseplants.
（10）"This really excites scientists，" Carle Pieters，a scientist at Brown University，says，"because it means we have the chance to obtain information about how the moon."发布：2024/5/23 20:38:36组卷：4引用：1难度：0.6529．Months ago we sailed ten thousand miles across this open sea，which
（被称作） the Pacific，and we met no storms.发布：2024/5/23 20:38:36组卷：0引用：0难度：0.8530．The girl is now living with her grandmotjye.ai.Her parents died in the earthquake.（定语从句）
→发布：2024/5/23 20:38:36组卷：6引用：1难度：0.7
