閱讀短文及文后選項，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。

March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world's major rivers have serious water loss and are polluted.

The Yellow River, the world's fifth longest river, watered some of the oldest farms on earth.

1.Its source（源頭）on Qinghai-Tibet Plateau is drying up. In most of the past 35 years, it didn't reach the sea.

The Nile in Egypt, running 6, 650 km, is the longest river in the world. 2. Now it is down to 2 billion m³ or so. Australia's Murray River reaches the sea only every other year. One fifth of America's Rio Grande has no water, either.

3.

Mostly it’s damming（筑壩）and global warming that make rivers dry. 4. Now about 45, 000 of them lie across the world’s rivers. They hold back around 15% of the world's fresh water from running to the sea.

5.Warmer weather takes water away. The glacier（冰川）are becoming smaller. The source of the Yellow River is drying up because of it. Global warming has had certain effects on water sources. Droughts （干旱） happening around the world make people pay more attention to this fact.

A. Dams provide fields with water and make power.

B. How does it happen?

C. It used to carry 32 billion m³ of water a year.

D. But now it has a serious problem.

E. Global warming is making things worse.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2016-2017學(xué)年北京房山區(qū)張坊中學(xué)八年級9月考英語試卷（解析版） 題型：閱讀理解

Daniel is visiting an online club called Schools Around the World. Here are two pieces of writing on the website about different school lives.

Hi, everybody,

My name is Nancy. I am in Year 7 at Woodland School near London. In our school, boys and girls have lessons together. Among all my subjects, I like French best. Learning foreign languages is fun.

Our school has a Reading Week every year. During the week, we can borrow (借) more books from the school library. We can also bring in books and magazines from home. I often read more books than my classmates. Near the end of the week, we talk about the books with our classmates in class. Time seems to go faster when we are reading interesting books.

Hi, guys,

I’m John and I’m 13 years old. I’m in the 7th grade at Rocky Mountain High School near Denver.

Every Monday, I go to the Buddy Club. In the club, older students help new students learn more about the school. My friend Tony is in the 12th grade. He often listens carefully to my problems and gives me help. He is my best friend.

We have different classes every day. On Friday afternoon, we finish classes earlier than usual. My friends and I often do sports together.

Twice a week, I play basketball after school. I love this game and practice hard every time. Our team won two games last month.

1. At Woodland School in a Reading Week, students don’t __________.

A. learn foreign languages

B. bring in books from home

C. borrow books from the library

D. talk about books with classmates

2. John goes to the Buddy Club to __________.

A. help new students

B. have classes with Tony

C. play basketball with his team

D. talk about his problems with Tony

3. What are the two pieces of writing mainly about?

A. A sports team. B. A Reading Week.

C. The Buddy Club. D. Different school lives.

查看答案和解析>>

科目：初中英語 來源：2016-2017學(xué)年黑龍江哈爾濱四十七中八年級上開學(xué)驗收英語卷（解析版） 題型：單項填空

－The students aren’t ________ be crazy about popular stars.

－I agree with you. They should consider their interests and responsibilities.

A. supposed to, balancing,

B. have to, balance

C. need to, to balance

查看答案和解析>>

科目：初中英語 來源：2016-2017學(xué)年山東武城育才實驗校八年級上第二次招生考試英語卷（解析版） 題型：單項填空

You’d better ____ up late.

A. not to get B. not get C. not getting D. not got

查看答案和解析>>

科目：初中英語 來源：2016-2017學(xué)年山東武城育才實驗校八年級上第二次招生考試英語卷（解析版） 題型：單項填空

—Excuse me, which is the way to the post office?

—Sorry. I’m new here.

—_____.

A. Not at all B. Bad luck

C. Thank you all the same D. Thank you

查看答案和解析>>

科目：初中英語 來源：2016屆廣東省廣州市天河區(qū) 九年級綜合測試（一模）英語試卷（解析版） 題型：完形填空

閱讀下面短文，掌握其大意，然后從 16～25 各題所給的 A、B、C 和 D 項中選出最佳選項，并在答題卡上將該項涂黑。

A game of catch is simply two people throwing a ball back and forth（來回地）. It seems a little and many people may not be interested in it. The two people are close enough to talk, but too far to touch. They might have baseball gloves, or they might use their hands.

In fact, playing catch is part of practice—to make you get used to using a ball and glove. But any American kid will teach you it’s much more than that. Playing catch is a time for kids to with your father. It’s a time when there’s to worry about except catching a ball. It’s a time when words move as seamlessly（準(zhǔn)確不誤地） as the ball itself, back and forth, easy and relaxing. It’s an excuse to time together.

Because baseball is an American sport, and a big part of being American, playing catch is kind of an all-American dad activity. In the suburbs（郊區(qū)）, most people have backyards — not enough to play baseball in, but just big enough for a game of catch. Those who have no can play in the street or in the park.

When adults are asked to talk about the good of their dads, many of them will say something about playing catch. Why? Probably because dads are usually very . A catch game is a time that is only for one thing. This is a time when a kid has her dad's . There is no work, no phone and no other people around to take your dad away from you. For the time that it takes to play a game of catch, your dad is all yours.

1.A. interesting B. boring C. amazing D. exciting

2.A. basketball B. baseball C. football D. volleyball

3.A. fight B. compare C. have D. be

4.A. nothing B. something C. everything D. anything

5.A. waste B. save C. spend D. forget

6.A. small B. large C. clean D. tidy

7.A. time B. money C. yards D. friends

8.A. jobs B. achievement C. education D. memories

9.A. busy B. brave C. strict D. kind

10.A. help B. worry C. courage D. attention

查看答案和解析>>

科目：初中英語 來源：2016屆貴州都勻九年級下期第二次模擬考試英語卷（解析版） 題型：補全對話

交際用語。

A）根據(jù)對話內(nèi)容，從下面方框中選出適當(dāng)選項完成對話。其中有兩項為多余選項。

A: What are you going to do this weekend?

B: 1.

A: I hear there will be a concert of Zhang Liangying this Sunday. Bob and I are going to see it. 2.

B: Of course. Zhang Liangying is my favorite singer. She is also from Chengdu. But I don’t have the ticket for the concert.

A: You are lucky. I have some tickets. 3.

B: Great! 4.

A: Let’s meet at the bus stop at half past five

B: I think there must be many people there. 5.

A: OK. See you at five o’clock.

B: See you.

A.Thank you all the same.

B.What about making it a little earlier?

C.Do you like her?

D.Let’s share them together..

E.I have no idea.

F.It doesn’t matter.

G.When and where shall we meet?

查看答案和解析>>

科目：初中英語 來源：2016屆貴州都勻九年級下期第二次模擬考試英語卷（解析版） 題型：單項填空

Three years has _______ since we last _______ each other.

A. passed; have met B. past; have met

C. passed; met D. past; met

查看答案和解析>>

科目：初中英語 來源：2016屆山東龍口（五四學(xué)制）九年級下期中考試英語卷（解析版） 題型：單項填空

–Could you come back home for dinner ?

--_________ . I’ll be at a very important business meeting at that time.

A. I think so B. I’m afraid not

C. Yes, I hope so D. I’m afraid so

查看答案和解析>>

同步練習(xí)冊答案