【正文】 submerging, but at a distance may be confused with other species that raise their flukes when diving, such as sperm, right and blue whales. Similar species: Easily identifiable due to a 39。s, minke and blue whales. The big family migrate between winter tropical breeding areas (North West Shelf, Great Barrier Reef, New Caledonia, Vanuatu, Fiii, Tonga) and summer Antarctic feeding areas. Once mon in New Zealand waters, humpbacks are now rarely seen and may migrate further offshore. Males pete for mates either by physical fight or by song. Females give birth to their young every two to three years。 270400 olive baleen plates such patterns enable individual recognition Body colour is dark brown to black。 sawtoothed trailing edge on flukes, often raised when diving Flippers are a third of body length。6．犇犇Choose the one that fits best according to the information given in the passage you have read. 根據(jù)最后一段中的“Future work will continue to focus on ameliorating the accuracy of identifying objects and imaging shapes and volumes”今后的工作將繼續(xù)側(cè)重于提高識別物體和成像形狀及體積的準確性，故選B。檢查行李總是需要人力，我們希望開發(fā)一種互補的方法來減少人力，可推知選A。s in airports. Manpower is always needed to check bags and we want to develop a method to try to reduce manpower.” （3）考查推理判斷，根據(jù)第五段中的“In large public areas, it39。 （2）考查細節(jié)理解。根據(jù)第三段中的“The detection system analyzes what happens when wireless signals go through and bounce off objects or materials.”這個檢測系統(tǒng)分析信號在物體和材料上穿透和反射時會發(fā)生什么。Examining.【答案】 （1）B（2）D（3）A（4）B 【解析】【分析】本是一篇說明文，介紹了研究人員發(fā)現(xiàn)，WiFi可用于可用于安檢。C.Improving.To research dangerous objects.（4）Which of the following can replace the underlined word “ameliorating in the last paragraph? A.To protect passengers39。B.To save money and labour. signals.D.It passes through bags without damaging them.C.s the advantage of the device? A.D.The way the device works.C.The function of the technique.s in airports. Manpower is always needed to check bags and we want to develop a method to try to reduce manpower.”s a growing need for that now. In large public areas, it39。 When it was tested on a backpack, the accuracy rate topped 95 percent. But the accuracy dropped to about 90 percent when objects inside bags are wrapped. And the tech could save lives if used in museums, stadiums, theme parks or schools, the team said, noting its design can inspect bags or luggage without being an exposure to privacy. Research suggested that WiFi can now be used to estimate the volume of liquids such as water, acid, alcohol and other chemicals for explosive material. The study led by researchers at the Wireless Information Network Laboratory (WINLAB) in the School. of Engineering showed a wireless device with two to three antennas(天線)that could be fitted in existing WiFi networks.5．犇犇閱讀理解C項正好與主旨句呼應，故選C。 （4）考查主旨大意。所以說，相較于老年人，年輕人的大腦花費更少的時間來處理信息。根據(jù)第一段中的最后兩句可知，年輕時之所以覺得日子似乎更長是因為大腦能夠以“快速射擊”的方式處理更多信息。故選B。根據(jù)第一段中的You39。故選A。 （1）考查細節(jié)理解。The Older, the FasterD.Nerves and NeuronsB.Old people have fewer things to do than young people.D.Young people are more energetic in their life.B.D.C.B.Rapid fire abilities.（2）What is unavoidable in the process of getting old? A.Information in our brain.C.re happening more quickly.（1）What causes time to fly faster as we get old? A. Little babies, for example, move their eyes much more often than adults because they39。 abilities of the young brain allow us to process more information during youth, causing the days to seem longer earlier in life. However, as we get old, researchers say the older brain takes more time to process information.ve got your aging brain to blame. This is likely due largely to the physical changes of our nerves and neurons (神經(jīng)元). New research suggests 39。 【點評】本題考點涉及細節(jié)理解，詞義猜測和推理判斷三個題型的考查，是一篇環(huán)境類閱讀，考生需要準確掌握細節(jié)信息，同時根據(jù)上下文的邏輯關系，進行分析，推理，從而選出正確答案。根據(jù)最后一段中的“…At the current rate, the world39。根據(jù)第一段中的“to reach a newly revealed ecosystem that had been hidden for 120,000 years below the Larsen C ice shelf.”到達一個新發(fā)現(xiàn)的在拉森冰架下面隱藏了12萬年的的生態(tài)系統(tǒng)，可知選D。故選C。 （2）考查詞義猜測。根據(jù)第二段中的“Now scientists say it is a race against time to explore these new ecosystems before they are transformed to the light.”可知，科學家著急趕去世界最大的冰山是為了在其受到光照影響之前研究這座冰山下面的海洋生態(tài)系統(tǒng)。冰山下面顯現(xiàn)的新的海洋生態(tài)系統(tǒng)為科學家提供了研究未知的海洋生物的機會。Many creatures living in deep water will die out due to climate change.D.There is no need to worry about climate change in Antarctica.B.It will disappear in a very short time.D.It is as big as London.B.The A68 iceberg with the ecosystem beneath it.D.The Larsen C ice shelf.B.To explore a new way to prevent climate change.D.To study how the iceberg was formed.B. There is growing concern about the possible impact of climate change in the Antarctic. Earlier this month, a report revealed that melting ice sheets in Greenland and Antarctica are speeding up the already fast pace of the sea level rise. The research, published by the National Academies of Science, Engineering and Medicine, said, At the current rate, the world39。 Professor David Vaughan, science director at the BAs, said, We need to be bold (大膽的) on this one. Larsen C is a long way south and there39。 Last year, part of the Larsen C ice shelf calved (崩解) away, forming a huge icebergA68—which is four times bigger than London, and revealing life beneath for the first time. Now scientists say it is a race against time to explore these new ecosystems before they are transformed to the light. Marine biologist Dr Katrin Linse from the BAS is leading the mission. A team of international scientists is due to set off for the world39。3．犇犇閱讀下列短文，從每題所給的A、B、C和D四個選項中，選出最佳選項。根據(jù)全文的描述，可知作者對于東京奧運倡議是持積極的態(tài)度，故選A。故選D。s a good start in showing what the public can do if they39。 （3）考查推理判斷。re in the homestretch for silver and gold medals, meaning the collection process can pack up at the end of