欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的


   Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, was full of life. Many birds and animals lived beside the water, which was full of fish. The lake water is polluted . It is in a color of dirty brown, and it is filled with strange plants.

How did this happen? First,  we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past, there were forests all around Lake Ponkapog, so the rainwater was clean.

Now there are many homes around the lake. People often use chemicals in their gardens. They use other chemicals inside their houses for cleaning or killing insects. There are also many businesses. Businesses use chemicals in their machines or shops. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater picks up all the chemicals from homes and businesses and then carries them into the lake. They pollute the water and kill the animals.

Boats on the lake are also a problem. Lake Ponkapog is a popular place for motorboats. But oil and gas from boats often get into the lake. So more bad chemicals go into the water this way.

People in Hartwell are worried. They love their lake and want to save it. Will it be possible?

A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground. And they mustn’t use motorboats any more on the lake. All these may change people’s lives. Only then can Lake Ponkapog be a beautiful, clean lake again.

1.In the past, the water in Lake Ponkapog was made clean by __________

A. forests          B. rain        C. birds       D. fish

2.Chemicals from homes and businesses_______________

A. are always clean                    B. can help the animals

C. are good for the lake                D. get into the rainwater

3.Clean rainwater will mean____________

A. more boats on the lake              B. more dirty things in the lake

C. a cleaner lake                            D. a dirtier lake

4.To save Lake Ponkapog, people need to _____________

A. be more careful about chemicals   B. use less water

C. grow fewer plants in the gardens   D. use more motorboats on the lake

5.The passage is about____________

A. boats on Lake Ponkapog                   B. why the water is dirty in Lake Ponkapog

C. clean rainwater                             D. dirty lakes


1A  2D  3C  4A  5B


練習冊系列答案
相關(guān)習題

科目:初中英語 來源: 題型:


 用完整的句子補全對話

A: Hi, Tom. ____________________ ( 1 ) ?

B: I have been to Beijing to see my pen friend David.

A: Really? _____________________ ( 2 ) ?

B: He is a doctor in a hospital in Beijing.

A: ____________________ ( 3 ) ?

B: I got to know him on a train.

A: ____________________ ( 4 ) ?

B: He is tall and strong and wear glasses.

A: ____________________ ( 5 ) ?

B: He is kind-hearted and nice. I am lucky to be friend with him.

查看答案和解析>>

科目:初中英語 來源: 題型:


_______ do you think of the schoolbag?

A.What         B.How            C.Who          D.Why

查看答案和解析>>

科目:初中英語 來源: 題型:


The plants ______well if they_______.

(A) won’t grow, don’t take good care of

(B) don’t grow, are taken good care of

(C ) don’t grow, don’t take good care of      

(D) won’t grow, are not taken good care of

查看答案和解析>>

科目:初中英語 來源: 題型:


He was ill, he didn’t feel like ________.

     (A)eating anything                                        (B)to eat something

     (C)eat nothing                                              (D)anything to eat

查看答案和解析>>

科目:初中英語 來源: 題型:


單項選擇。

—Do your parents have the same hobby?

        —No.My father likes playing________ chess while my mother enjoys playing piano.

      A./;the          B./;/          C.the;/        D.the;the

查看答案和解析>>

科目:初中英語 來源: 題型:


My grandfather lives in a village________,but he never feels_________.

      A.a(chǎn)lone;alone                         B.lonely;alone

      C.lonely;lonely                        D.a(chǎn)lone;lonely

查看答案和解析>>

科目:初中英語 來源: 題型:


Both the children ______ good at maths.

A. is                      B. be                     C. are                    D. being

查看答案和解析>>

科目:初中英語 來源: 題型:


書面表達
假如你叫李華,在因特網(wǎng)上找到了一個叫David的網(wǎng)友,現(xiàn)在請你根據(jù)下列要點給David寫一封80詞左右的E-mail,介紹你自己的一些情況。
1.李華,中學(xué)生,家住在上海。
2.喜歡集郵和運動。
3.對英語很感興趣,會唱不少歌曲。
4.班里同學(xué)也想找網(wǎng)友,希望得到幫助。
5.想去英國看看。


查看答案和解析>>

同步練習冊答案