提高听能力必背长难句有哪些？

  听力考试对于很多托福考试学员 来说，是一大难题，应该如何攻克呢？提高听力能力必备的长难句有哪些？

  Since you are already here, I can give you  a quick summary of how whales hold their breath underwater.

  It is not even clear that assisted  migration or any migrationfor that matter will help at least for some  species.

  In one case, a group of conservationists  has alreadytaken it upon itself to try on their own to save an  endangered tree, the Florida Torreya tree, through assisted migration.

  The group believed its effort is justified,  but I and many other biologists will be watching very closely how this maverick  group makes it out, because like I said there could be unintended consequences.

  And initially I was surprised none of you  chose to write about Bela Bartok that is until I rememberedwe haven’t  had a chance to discuss him in class yet.

  He attended weddings, dances and religious  ceremonies, where he heard a very different sort of music from the  romantic stuff being played in the concert halls in the cities.

  But it turns out that what would hater  have a notable influence on European music on the whole, was the way  Bartok used elements he heard in folk songs in his own compositions.

  The rosetta stone was remarkable because as  I said, on it, was the same text in three different alphabets.

  As we have said before, the main point of  the renaissance was to revive the genius of the ancient Greeks and  Romans, which is why designers of renaissance gardens designed them as the  ancient Romans would have designed them, or at least as they imagined  the ancient Romans would have  designed them.

  And then before we decide to include a book  in the sale, we review its circulation history again, which can  take a while. We’ve got a lot of books in storage.

  Well, actually, while I was reading it the  second time, I sort of realized that you don’t need surprises or  excitement to have a great story.

  It made me think that when I write my  story, the one we have to write for this class, I can maybe use my own  memories to get me started.

  But what I really wanted the class to take  away from it was that you don’t need to write about the great exciting world  when you write your stories.

  You know, as the due day of your stories approaches,  I am hearing from a lot of students that they are worried because they  don’t have anything exciting enough to write about.

  As you will recall, Dada began in  Switzerland, in the city of Zurich, in 1916. The artists who studied it were reacting  against traditional notions of beauty, of reason, of progress, which had  been standards of western thought since the 18th century.

  And so we have that collage we  looked at, with an artist took different, you know,cut-out squares of colored paper, threw them onto  the canvas, and wherever they landed, that was the composition of the work!

  The performers at the Cabaret Voltaire  would also get the audience involved, which was extremely  unusual.

  At the end of yesterday’s class, we were  discussing landfills and the hundreds of millions of tons of everyday  garbage, which are deposited into them each year in the United States.

  We have government recycling programs for  materials like plastics, glass and metal, yet widespread solutions for  organic waste materials haven’t really  been addressed in the  United States.

  The gases are captured and can be burned to  produce electricity, which saves a lot of money and ultimately decreases our  need for fuels like petroleum and coal, which are not only expensive but are  also polluting.

  But the APS containers are small enough to  be set up on site, where the waste is generated, like at food processing plants or on farms.

  Not only did the  university same money, we are also learning even more about the APS process.

  There are several important factors associated  with pollination when and how often a plan flowers, how long the  flowering cycle lasts, and the number of flowers that open at the same time.

  It can fragment habitats in a variety of  ways, reducing the number of pollinators, which in turn may reduce the  number or size of the flowers, which of course affects the animals that  feed on them.

  And as a market analyst, you could say that  with Kind of Blue, he was jumping to the beginning of a brand new  S-curve, with all that potential for profitable development still  ahead of him.

  Well, campus businesses like the cafeteria  or bookstore don’t quite follow the kinds of service models we’re studying in  class.

  So your next step in this process needs to  do is to go look at the work you’ve selected as your topic and bring a pencil  and a notepad with you.