Question

11．Orcas，or killer whales，are the largest of the dolphins and one of the world's most powerful animals feeding on meat．They feast on marine mammals such as seals，sea lions，and even whales，employing teeth that can be four inches （ten centimeters） long．They are known to grab seals right off the ice．They also eat fish，squid （魷魚），and seabirds．
Though they often frequent cold，coastal waters，orcas can be found from the polar regions to the Equator （赤道）．
Killer whales hunt in deadly groups，family groups of up to 40 individuals．There appear to be both permanent and temporary group populations of killer whales．These different groups may hunt different animals and use different techniques to catch them．Permanent groups tend to prefer fish，while temporary groups target marine mammals．All groups use effective，cooperative hunting techniques that some are similar to the behavior of wolf packs．
Whales make a wide variety of communicative sounds，and each group has various noises that its members will recognize even at a distance．They use echolocation （回波定位） to communicate and hunt，making sounds that travel underwater until they meet objects，then reflect back，showing their location，size，and shape．
Killer whales are protective of their young，and other adolescent females often assist the mother in caring for them．Mothers give birth every three to ten years，after a 17-month pregnancy．
Killer whales are immediately recognizable by their special black-and-white coloring and are the intelligent，trainable stars of many aquarium shows．Killer whales have never been widely hunted by humans．
37．Killer Whales do not feed onD．
A．seabirds         B．seals                 C．fishes               D．seaweeds
38．The following aspects about killers whales are mentioned exceptC．
A．hunting           B．communication            C．weight               D．habitats
39．We can conclude thatC．
A．people can find killer whales everywhere around the world
B．killer whales live in different groups and never live alone
C．by making sounds killer whales hunt and communicate
D．humans'hunt has made killer whales being endangered
40．Killer Whale are often seen in some aquarium shows becauseA．
A．they are able to be trained                   
B．they have special body colors
C．they must be protected                    
D．they have never been hunted．

Answer 1

分析 本文主要講述了一種肉食性動(dòng)物虎鯨的捕食習(xí)性、交流方式和棲息地等，因此其聰明，還可被馴化為人類表演節(jié)目．

解答 37．D 細(xì)節(jié)題．根據(jù)第一段Orcas，or killer whales，are the largest of the dolphins and one of the world's most powerful animals feeding on meat，以及They also eat fish，squid （魷魚），and seabirds．
可知，虎鯨是肉食性動(dòng)物，不會(huì)吃海草．故選D
38．C 細(xì)節(jié)題．根據(jù)文章內(nèi)容，Orcas，or killer whales，are the largest of the dolphins and one of the world's most powerful animals feeding on meat..They use en （回波定位） to communicate and hunt…Though they often frequent cold，coastal waters，orcas can be found from the polar regions to the Equator （赤道）．，文章分別講述虎鯨的捕食習(xí)性、交流方式和棲息地．沒有提到C選項(xiàng)的內(nèi)容，故選C
39．C 細(xì)節(jié)題．根據(jù)倒數(shù)第三段They use en （回波定位） to communicate and hunt可知，虎鯨會(huì)使用聲波來交流和捕食．
40．A 細(xì)節(jié)題．根據(jù)最后一段Killer whales are immediately recognizable by their special black-and-white coloring and are the intelligent，trainable stars of many aquarium shows可知，虎鯨經(jīng)常出現(xiàn)在水族館的表演中是因?yàn)樗鼈兎浅Ｂ斆�，可以被�?xùn)練．

點(diǎn)評(píng) 本文是一個(gè)新聞報(bào)道類閱讀，題目涉及多道細(xì)節(jié)理解題，做題時(shí)結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項(xiàng)選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測(cè)，一定要做到有理有據(jù)．