19．What do you know about the sea？Everybody knows that the sea looks beautiful when the sun is shining on it．But it becomes very terrible when there is a strong wind．If you study the map of the world，you will find that about two thirds of the world is the sea．
Have you ever been to the sea？The sea is very deep．In some places the sea is much deeper．The highest mountain in the world is about 9kilometers high．While the deepest place of the sea is almost 11kilometers deep．
The sea is very cold．On the top of the sea the water may be warm．But if you go down，it becomes colder and colder．In most places of the sea，there are lots of fishes．a(chǎn)nd plants．Some live near the top of the sea．Others live deep down．
You know the sea water is salty．The water of the Dead Sea is very salty．It is so salty that fish can't live in it．What a strange sea!

21．What do we know about the sea from the text？D
A．It is always beautiful．
B．It is really terrible．
C．There is a strong wind on the sea
D．On earth two thirds of the world is the sea．
22．The deepest part of the sea isD．
A.11meters   B.9kilometers   C.20kilometers  D.11kilometers
23．Which statement is true according to the text？B
A．All seas are very cold in winter．
B．The sea becomes colder and colder when you go down it．
C．There are lots of fishes and plants in all seas．
D．The water of the Dead Sea is not very salty．

分析 這篇文章講述了關(guān)于大海的文章，當(dāng)太陽(yáng)照耀的時(shí)候，美麗的大�？雌饋碚嫫�，但是當(dāng)有強(qiáng)風(fēng)的時(shí)候，它就變得非常地可怕，從地球上看，會(huì)發(fā)現(xiàn)地球上四分之三是海洋，海水很深也很冷，海水是咸的，而且死海的咸度很高，在海洋的深處有很多秘密．

解答 21．D．細(xì)節(jié)理解題．根據(jù)第一段If you study the map of the world，you will find that about two thirds of the world is the sea可知地球上三分之二的世界是海洋；故選D．
22．D．細(xì)節(jié)理解題．根據(jù)第二段While the deepest place of the sea is almost 11kilometers deep可知大海最深處有11千米深；故選D．
23．B．細(xì)節(jié)理解題．根據(jù)第三段On the top of the sea the water may be warm．But if you go down，it becomes colder and colder可知你越往海底去，溫度就越低；故選B．

點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．

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