A. You haven't looked at it carefully. B. Water can't be drunk in this way. C. There must be lots of germs in it. D. Water will make you ill.

4. Which of the following is NOT true?

A. Germs can be found both in water and in the air. B. Germs can go into your finger if it is cut.

C. If your temperature is not OK，there must be germs in your body. D. If your finger isn't cut，there aren't any germs on it.

5. What's the main idea of the passage?

答案及解析：

1．选D，根据第四段中Germs aren't found only in water. They are found in air and dust.可以排除C选项。A，B选项明显不符合题意，只有选D，并且根据第二段It is germs(细菌). Germs are everywhere.可以确定正确答案。

2．选A，根据文中They are very small and you can't find them with your eyes，but you can see them with a microscope.可以知道microscope是显微镜。确定选A。

3．选C，文中说到Germs are always found in dirty water.因此父母不让喝脏水。 4．选D，根据文章可以判断A，B，C均为正确答案，而D项不正确，即使手不被割破，也会有细菌的。

5．选A，总揽全文，可以确定答案为A， Germs may make us ill。

A. Germs may make us ill. B. Germs are in dirty water. C. Don't drink dirty water. D. Take care of your fingers.

阅读理解9

Hundreds of years ago，a Roman army came north from England to make war on Scotland. The Scots，a brave people，loved their country very much. They fought hard to drive the enemy out of Scotland，but there were too many Romans. It looked as if the Romans would win. One night，the leader of Scots marched his soldiers to the top of a hill. “We will rest here tonight，my men,”he said. “Tomorrow we will fight one more battle. We must win or we will die.” They were all very tired，so they ate their supper quickly and fell asleep. There were four guards on duty，but they，too，were very tired，and one by one，also fell asleep.

The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they climbed up the hillside，taking care not to make a sound. Closer and closer they came to the sleeping Scots. They were almost at the top. A few minutes more，the war would be over. Suddenly，one of them put his foot on a thistle(蓟). He cried out and his sudden cry woke the Scots. In a moment，they were on their feet and ready for battle. The fighting was hard but it did not last long. The Scots wiped out the Romans and saved their country.

The thistle is not a beautiful plant. It has sharp needles all over it. Few people like it. But the people of Scotland liked it so much that they made it their national flower. 根据短文内容，选择正确答案。

1. Hundreds of years ago there was a war between ________.

A. Roman army and North England B. Roman army and the Scots C. England and Scots D. a brave people and the Scots

2. At first it looked as if the Romans would win because ________.

A. the Scots were not brave B. the Roman army was so strong C. the Scots did not have a good leader

D. the Romans had the support from the Scottish

3. “We must win or we will die.”What the leader of the Scots said means ________.

A. they were sure to win B. they couldn't escape from death C. they would win and then they would die

D. they must try hard to win， otherwise they would be killed

4. The Romans climbed up the hill quietly because ________.

A. they didn't want to wake the Scots B. they wanted to reach the top

C. they wanted to catch the four guards first

D. they were afraid of the sharp needles of the thistle

5. The people of Scotland made thistle their national flower because ________.

答案及解析：

1．选B，文中很明显的指出，这场战争是Roman army和the Scots之间的。

2．选B，They fought hard to drive the enemy out of Scotland，but there were too many Romans. It looked as if the Romans would win. 是因为Romans太强大。因此选B。

3．选D，“We must win or we will die.”的意思是“我们必须胜利，否则我们会死掉”，因此选D。

4．选A，the Romans悄悄爬山的原因是不想吵醒the Scots，以便偷袭。 5．选D，根据文中大意，可得出正确答案。

A. it is a beautiful plant B. it is fresh and lovely

C. it had so many sharp needles all over it

D. it was the thistle that helped the Scots to win the battle

阅读理解10

As many as 10 of the 17 kinds of penguins（企鹅）may be in danger of disappearing. The number of penguins have decreased(减少) by 30% since 1987.

Penguins are black and white birds that live in the southern part of the world. They are common in South America，New Zealand，Australia and South Africa. Mary live near cold waters. But some live near warm waters in Galapagos Islands. Penguins cannot fly，but they are fine swimmers. Penguins eat fish and krill(磷虾).

The warming of the earth is the decrease in penguin populations. The heating of the air has caused ocean waters to become warmer. Higher water temperatures have reduced the supply of fish and krill. Some years later these birds are completely unable to reproduce(繁殖). Besides，many adult penguins die of hunger.

Widespread(广泛的) fishing，exploration for oil and oil leaks(漏) also make penguins be in danger. Poisonous organisms(生物) in ocean water are another danger. Penguins also have their enemies，including wild dogs，sharks，seals and sea lions.

News about penguins is not all bad，however. Several years ago，oil leaking from a ship hurt 40% of the penguins in South Africa. The penguins became covered with oil. But thousands of people helped clean and treat the birds well. Then they returned the penguins to the wild. Now these South African penguins are reproducing in higher numbers than before the oil leaking. 根据短文内容，选择正确答案。 1. Penguins ___________.

A. can swim better than fly

B. can be found near Oceania (大洋洲) C. eat fish only

D. live only in cold waters.

2. Which of the following is NOT the cause of penguin's decrease in numbers?

A. Oil searching.

B. Widespread fishing.