Water may be the most serious problem in the world. Is this 16 to you? You may think that nearly 7——青夏教育精英家教网—

摘要：Water may be the most serious problem in the world. Is this 16 to you? You may think that nearly 70% of the 17 is covered with water. Yes, it is 18 . But about 97% of it is sea water or salt water, and it can’t be drunk used. People can only drink and use the 19 3%. The water 20 only from rivers, lakes and underground. And we can not even use all of that, because iceberg 21 some of it. Even 22 , some of the water has been polluted. Of course, this little water is still 23 for us if no more water is wanted and some of it can be 24 back again. But today more and more water is 25 ; for more and more people, more and more factories- We must take steps to do with this problems. One of the first steps is to develop 26 of reusing water. Another way is to use 27 water by 28 the salt out and this began in many countries. But it 29 too much. How serious the water problem is! 30 in the end of the next century, there will be drinking water only. 16.( ) A. new B. strange C. easy D. interesting 17.( ) A. land B. world C. earth D. moon 18.( ) A. true B. wrong C. right D. trouble 19.( ) A. other B. another C. one D. more 20.( ) A. starts B. brings C. goes D. comes 21.( ) A. gets B. covers C. takes D. uses 22.( ) A. more B. worse C. better D. harder 23.( ) A. clear B. good C. well D. enough 24.( ) A. turned B. come C. become D. grown 25.( ) A. frozen B. lost C. needed D. kept 26.( ) A. rules B. roads C. ways D. problems 27.( ) A. river B. sea C. lake D. dirty 28.( ) A. taking B. getting C. coming D. moving 29.( ) A. gives B. costs C. spends D. uses 30.( ) A. Nearly B. Although C. Of course D. Maybe

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用给出单词的正确形式填空。

1. What is your first ______ (impress) of Miss Lin?
2. Bad ______ (luck) ! She was badly hurt in the accident.
3. Fire and water may be good ______ (servant), but bad masters.
4.I’m ______ (pleasure) to tell you that you've got the job.
5. To see is ______ (believe).

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　　What do you know about the sea? Everybody knows that the sea __(1)__ beautiful when the sun is shining __(2)__ it. But it becomes very terrible when there is a strong wind. If you study the map of the world, you will __(3)__ that about the three quarters of the world is sea.

　　Have you ever been at sea?（你曾经到过大海吗?）The sea is very deep. In some places the sea is __(4)__ deeper. The __(5)__ mountain in the world is about 9 kilometers high. While the deepest place of sea is __(6)__ 11 kilometres deep.

　　The sea can be very cold. __(7)__ the top of the sea the water may be __(8)__. But if you go down, it become colder and colder. In most places of the sea, there are lots of __(9)__ and plants. Some live near the top of the sea. Others live deep down.

　　You know the sea water is salty（咸的）. The water of the Dead Sea is very salty. It is so salty that fish can't live __(10)__ it. What a strange sea!

(1)A．looks		B．sees
C．watches		D．looks at
(2)A．in	B．on	C．into	D．onto
(3)A．guess		B．learn
C．know of		D．know about
(4)A．more	B．very	C．much	D．little
(5)A．high	B．tall	C．highest	D．tallest
(6)A．near		B．almost（几乎）
C．nearby		D．hardly
(7)A．At	B．In	C．Under	D．below
(8)A．cold	B．warm	C．cool	D．hot
(9)A．fishes		B．beasts
C．things		D．living things
(10)A．out	B．in	C．on	D．at

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完形填空。
What do you know about the sea? Everybody knows that the sea 1 beautiful when the sun is shining on it. But it becomes very terrible when 2 a strong wind. If you study the map of the world， you will 3 that about two thirds(三分之二)of the world is the sea. Have you ever been to(曾经去过)the sea？The sea is very deep(深的). In some places the sea is 4 deeper. The 5 mountain(大山) in the world is about 9 kilometers high. While(然而) the deepest place of the sea is almost(几乎)11 kilometers deep. The sea 6 very cold. On the top of the sea the water may be 7 . But if you go down , it becomes colder and 8 In most places of the sea, there are lots of fishes. and plants. Some live near the top of the sea. 9 live deep down. You know the sea water is salty. The water of the Dead Sea is very salty. It is so salty 10 fish can't live in it. What a strange sea!
( ) 1. A. sees ( ) 2. A. there are ( ) 3. A. learn ( ) 4. A. very ( ) 5. A. high ( ) 6. A. can ( ) 7. A. cold ( ) 8. A. colder ( ) 9. A. Other ( )10. A. after	B. looks B. there has B. know about B. much B. tall B. can is B. warm B. cold B. Others B. that	C. watches C. there is C. look for C. more C. higher C. can be C. colder C. warmer C. The others C. when	D. looks at D. there have D. think of D. most D. highest D. could D. hot D. warm D. The other D. until

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完形填空

　　What do you know about the sea?Everybody knows that the sea 1 　 beautiful when the sun is shining 2 　 it.But it becomes very terrible when there is strong wind.If you study the map of the world.you'll 3 　 that about three quarters of the world is the sea.

　　Have you ever been at sea?The sea is very deep.In some places the sea is much deeper.The 4 　 mountain in the world is about 9 kiolmetres high 5 　 the deepest place of the sea is 6 　 11 kilometres deep.

　　The sea can be very cold.At the top of the sea the water may be 7 ndline.But if you go down,it becomes colder and colder.In most places of the sea，there are lots of 8 　 and 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's so salty that fish 9 　 live in it.10 　 a strange sea!

(1)

A.looks　　B.sees　　C.watches D.looks at
[　　]

(2)

A.in　　B.on　　C.into D.to
[　　]

(3)

A.guess　　B.learn　　C.know of D.feel
[　　]

(4)

A.high　　B.tall　　C.higher D.highest
[　　]

(5)

A.but　　B.because　　C.while D.if
[　　]

(6)

A.near　　B.almost　　C.nearby D.near by
[　　]

(7)

A.cold　　B.warm　　C.cool D.colder
[　　]

(8)

A.fish　　B.beasts　　C.things D.colder
[　　]

(9)

A.don't　　B.can't　　C.wouldn't D.may not
[　　]

(10)

A.How　　B.How is　　C.What D.What is
[　　]

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Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cool our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.

There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the driest part of the world, there is some water in the air. You cannot see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid. The water in the air is a gas, and we call it water vapor.

Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体).Snow crystals are very, very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.

Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you cannot see or feel it.

1.Where can we find water?

A. We can find water when it turns into vapor.

B. Water can be found almost everywhere.

C. We can see water in deserts here and there.

D. Water is only in seas and rivers.

2.We can drink water 　　　　 .

A. when it is a liquid　　　　　　　　　　　　　　　　 B. when it is a solid

C. when it is in the air　　　　　　　　　　　　　　 D. when it is turned into ice

3.Clouds are made of 　　　　 .

A. seas, rivers and lakes

B. blocks of ice

C. water in its solid state

D. very small drops of water or snow crystals

4.Water has three states. They are 　　　　 .

A. ice, snow and air　　　　　　　　　　　　　　　　 B. solid, gas and vapor

C. solid, liquid and gas　　　　　　　　　　 D. drops, blocks and crystals

5.We must protect water resources because 　　　　 .

A. crops need water　　　　　　　　　　　　　　　　 B. all living things need water

C. all animals need water　　　　　　　　　　 D. all plants need water

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