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下列组合中，依次属于种群、群落、生态系统的一组是                                （ ） ①一块稻田中所有三化螟幼虫、蛹和成虫     ②钱塘江滩涂的全部生物    ③天目山的全部生物及无机环境    ④西溪湿地的全部动物及绿色植物 A．①②③             B．②③④     C．③④①            D．①②④Are you looking for some interesting and meaningful places to take your kids to? Here are some places for you to choose before they grow up:AlaskaNot to sound cool, but “it's a good chance to experience a trip through the icebergs. There are over 100,000 glaciers in Alaska, more than anywhere else in the world combined. You can also spot whales and other wildlife, visit the famous Denali National Park, enjoy the landscapes and even learn about the roughly 20 different native languages Spoken thereNew York CityYou definitely don't want to be chasing after your shopaholic teens in Manhattan, so plan your trip to the Big Apple when the kids are still young enough to enjoy the family-friendly trips! There are several family-friendly Broadway shows to see. You can also bring them for a walk in Central Park, pay a visit to the giant M&M'S store in Times Square, take a City Sightseeing Cruise, get on a boat to see the Statue of Liberty, visit the Brooklyn Children's Museum, and even enjoy a yummy street hot dogCape CanaveralThere are few things m the world as cool as rockets that fly to the outer space, so obviously ,a visit to Cape Canaveral's Kennedy Space Centre is one of the coolest trips you can you’re your children on. Though you won't see any more launches from this space station and its retired rockets, you can find out what it feels like to be in the Shuttle Launch Experience flight simulator Plus, it's only one hour away from Orlando, Florida, so if you visit Disney World as well, this quick side trip will be an easy one to make.The Canadian RockiesIf you happen to visit the Canadian portion of the nor them Rocky Mountains, a visit to Banff National Park will certainly not disappoint you. There are so many great activities for the whole family to enjoy like wildlife viewing, spaceflight tours, fishing, horseback riding, and hiking. Let your children experience the beauty of the Canadian Rockies and learn more about the history of this impressive UNESCO World Heritage site.1. If a child wants to experience something related to spaceflight, where can he go?A. Alaska and New York City.B. Alaska and Cape Canaveral.C. Cape Canaveral and the Canadian Rockies.D. New York city and Cape Canaveral.2.What can children do if they go to Alaska?A. See the Statue of Liberty and enjoy Broadway shows.B. Visit Disney World and see some retired rockets.C. Learn the history of a UNESCO world Heritage site and enjoy horse riding.D. Learn some native languages and experience a trip through the icebergs.3.What does the underlined word "the Big Apple" mean in the passage?A. New York City B. ManhattanC. Broadway D. Times Square4. What type of writing is this text?A. An exhibition guide. B. A travelling brochure.C. An announcement. D. An art show review.