10.The Great Barrier Reef is home to brightly colored fish,eye-catching coral,and swaying seaweed.What else is hiding in the world's largest coral reef?Scientists recently dived into the water to find out.A team of scientists explored the reef,located along Australia's northeastern coast.They also checked out Ningaloo Reef on the country's western coast.The searches turned up hundreds of animal species,including some that may be new to science.Scientists spied worms shaped like trees,big-clawed shrimp and jellyfish.
"It is awe-inspiring to know that so much of what we see has not yet been described,"says Patricia Hendricks,who took part in the expedition.That is a trip with a specific goal."The reef is truly a beautiful place with so many mysteries."
Scientists wanted to get a closer look at some of the underwater cities'lesser-known residents-soft coral.Using netted bags and their hands,the scientists searched the reefs.They found about 130types of soft coral that may be new species.A lot is known about hard coral,but soft coral is more of a mystery.The creatures are very diverse,or varied.Some are shaped like bushes or fans.Others are whips that twist with the currents.They grow in rainbow of colors.Despite the variety,some types of soft coral look very similar to one another,"This makes them a challenge to study,and so very little is known about them."Hendricks told ER News.She and other researchers took samples of the soft coral.The scientists also zeroed in on what was living in and around the coral.They hope to identify the new species.
The reef research isn't done yet.The scientists plan to return to same three spots annually for the next six years.They left 36plastic"houses"stuck to the ocean floor.The scientists hope some of the coral reefs'residents will move into the houses over time.That will make it easier for scientists to study the creatures on future trips.
The scientists'findings could give humans a hand.Some marine life is used in medicine.Researchers can also study how the creatures deal with pollution and climate change.That mightgive scientists ideas on how people could better adapt or change.Knowing what creatures live in oceans is important,scientists say,because on-third of the world's coral reefs are endangered."If we don't know what is present in the first place,how are we ever going to protect it properly?"asks Hendricks."Learning about new species is an important step."

53.What's the main idea of the passage?A
A.Scientists find surprises in the Great barrier Reef.
B.Soft Coral no longer remains a mystery.
C.Scientists left 36plastic houses to the ocean floor.
D.Scientists made explorations to deal with ocean pollution.
54.According to the passage,what makes the study of the soft coral a big challenge?C
A.The diversity of the soft coral. B.Many unknown species.
C.The similar appearance.          D.Various shapes and colors.
55.What does the writer mean by"That might give scientists ideas on how people could better adapt,or change."(Para.5)?B
A.Ocean species may be of great medical value in the future.
B.A study of ocean creatures'adaptation may assist scientists in their research.
C.Research on ocean creatures will help solve the pollution problem.
D.Studying new ocean species will help improve people's living environment.
56.It can be inferred from the passage thatC.
A.the scientists discovered many ocean species by accident
B.coral reefs in the world are endangered because of climate change
C.the Great Barrier Reef has been attracting more scientists'attention
D.the samples of the soft coral enables scientists to further explore the ocean.

分析 科學家在大堡礁發(fā)現(xiàn)了許多新奇的動物物種,其中包括一些待確認的新物種,并且研究大堡礁的海域還可以用來解決污染問題.

解答 53.A.主旨大意題.由全文內(nèi)容得,科學家在大堡礁發(fā)現(xiàn)了許多新奇的動物物種.故選A.
55.C.細節(jié)理解題.由第三段some types of soft coral look very similar to one another,"This makes them a challenge to study可知,使研究軟珊瑚具有挑戰(zhàn)性的是它們之間外表十分相像.故選C.
55.B.理解推斷此句話意思是研究這些可以用來研究生物處理污染和氣候變化,也就是說可以用來解決污染問題.故選B.
56.C.推理判斷題.由文章內(nèi)容可知,科學家在大堡礁發(fā)現(xiàn)了許多新奇的動物物種,并且研究這些物種也有利于解決污染問題.因此推測大堡礁已經(jīng)吸引了許多科學家的注意.故選C.

點評 在對科技說明文進行閱讀理解是,考生可以尤其注意中心句,中心段(首尾)、轉(zhuǎn)折句和問題中出現(xiàn)的詞,尤其是一些很有特點的詞如專有名詞.在文段中快速找到相應(yīng)詞語所在位置,問題的答案往往就在附近.

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