[請益] Cambridge的模考二整合寫作我找不出三項

看板TOEFL_iBT (TOEFL_iBT托福)作者crystaloops (克利斯多˙貢)時間16年前 (2009/08/05 22:48)推噓2(2推 0噓 1→)

留言3則, 2人參與討論串1/1

先空一頁給尚未模考過的人防雷XDDD 我之前看了JJ的整合寫作都很清楚的聽力三項對上閱讀三項但是今天做了Cambride模考二的整合寫作出現的問題看文章的時候 1.文章很短?! 我完整的看兩次時間還沒到請問考試時的文章長度? 2.看完文章找不出他的三個重點考試時是應該要聽完聽力才找得到還是看文章就會有? 之後聽力 1.有大概聽到三個缺點(事實上有四個) 但是找不到對應文章中的哪邊三點下面附上文字檔請大家幫我看一下重點在哪邊呀 Reading - Tidal Power 閱讀大概在介紹潮汐發電的原理還有好處 Technology is available to exploit the potential energy formed by tides for the generation of electrical energy. The basic structure is a barrage or dam built across a river estuary or at the mouth of a bay. This dam is similar to that used in hydroelectric power plants built across flowing rivers. At regular intervals along the dam, gates and turbines are installed. When the tide is rising, the gates are opened. This allows water to flow into the area behind the barrage, raising the water level there. When the water has reached its highest level, the gates are closed. Then the tide drops on the seaward side, and this trapped water is several meters above the sea level. The gates are then opened, allowing the water to discharge out. The force of the flow turns the turbines and generates electricity. It is also possible to use tidal energy when the water flows in the other direction - through the gates into the estuary from the sea. In this way, four periods of energy production are possible every day, since coastal regions experience two high and two low tides in just over 24 hours. In order for practical amounts of electricity to be generated, the difference between high and low tides must be at least five meters. Tidal power is renewable, non-polluting, and contributes no greenhouse gases to the atmosphere. This kind of system can provide a useful energy supplement to other sources in an era of diminishing fossil fuel reserves. Listening 聽力主要是找到潮汐發電的壞處 OK, now I want to discuss tidal power since I think it's a good example of an alternative energy source that we should look at critically. OK, now let's think about some of the possible drawbacks to the system. For a start, tidal power can never do more than provide a fraction of our total energy needs since there just aren't enough good locations. 第一個壞處潮汐發電產生的電力不夠我們使用因為好的位子不夠 However, tidal power could still make some contribution at a regional level. But what about the environmental impact? First of all, the quality of the water in the estuary area will be changed, and this will have an effect, of course, on the local wildlife. Both the increase in salinity, when seawater is mixed with estuary water, and also the amount of mud and sediments churned up in the water will affect the birds and the fish. These conditions could stimulate the growth of the red tide organism, which causes paralysis in shellfish and affects many aquatic creatures. And much of the inter-tidal habitat could be destroyed, and this would have a devastating effect on birds and vegetation types adapted to these conditions. 水質變化會影響生態淡水的鹽度增高泥土增加會影響鳥跟魚還有其他水裡的生物 And what about the fish that naturally migrate between river and sea? Their ability to migrate will be hampered since they won't be able to pass the barrage. Now, it could be possible to make some kind of provision for them to move freely between salt and freshwater environments, but this would lead to expensive design considerations. 那種會在海水跟淡水中遷徙的魚受到影響因為他們跨不過barrage Also, there are implications for the people living in the area. For example, fishing boats are normally moored in the estuary for protection from the rougher waters, but they'll no longer be able to navigate between estuary and open sea. In such a case, the economy of the whole area could be affected. 影響了附近居民漁船沒辦法兩邊跑影響了經濟 So, all of these things are drawbacks of tidal power and need to be matched against the benefits of alternative energy production. -- ▄▄▄▄▄▄▄★▄▄▄▄╮▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄★ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄★▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ http://0rz.com/?jQ1XY ▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ φcrystaloops -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.161.201.46