Passenger pigeons (旅鴿)once flew over much of the United States in unbelievable numbers.

Written accounts from the 18th and 19th centuries described flocks (群)so large that they darkened the sky for hours.

It was calculated that when its population reached its highest point ,there were more than 3 billlion passenger pigeons—a number equal to 24 to 40 percent of the total bird population in the United States, making it perhaps the most abundant bird in the world. Even as late as 1870 when their numbers had already become smaller, a flock believed to be 1 mile wide and 320 miles (about 515 kilometers) long was seen near Cincinnati.

Sadly the abundance of passenger pigeons may have been their undoing. Where the birds were

most abundant, people believed there was an ever-lasting supply and killed them by the thousands.

Commercial hunters attracted them to small clearings with grain, waited until pigeons had settled to feed, then threw large nets over them, taking hundreds at a time. The birds were shipped to large cities and sold in restaurants.

By the closing decades of the 19th century ,the hardwood forests where passenger pigeons nested had been damaged by American’s need for wood, which scattered (驅(qū)散) the flocks and forced the birds to go farther north, where cold temperatures and storms contributed to their decline. Soon the great flocks were gone, never to be seen again.

In 1897, the state of Michigan passed a law prohibiting the killing of passenger pigeons but by then,

no sizable flocks had been seen in the state for 10 years. The last confirmed wild pigeon in the United

States was shot by a boy in Pike County, Ohio, in 1900. For a time , a few birds survived under human

care. The last of them, known affectionately as Martha, died at the Cincinnati Zoological Garden on

September 1, 1914.

1.In the 18th and early 19teh centuries, passenger pigeons____.

A. were the biggest bird in the world

B. lived mainly in the south of America

C. did great harm to the natural environment

D. were the largest bird population in the US

2.The underlined word “ undoing” probably refers to the pigeons’ ____.

A. escape B. ruin

C. liberation D. evolution

3.What was the main reason for people to kill passenger pigeons?

A. To seek pleasure. B. To save other birds.

C. To make money. D. To protect crops.

4.What can we infer about the law passed in Michigan?

A. It was ignored by the public. B. It was declared too late.

C. It was unfair. D. It was strict.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2016-2017學(xué)年山東省高二（實(shí)驗(yàn)班）3月月考英語試卷（解析版） 題型：閱讀理解

In late summer or early fall the large, yellow seed heads of sunflowers will be ripening. If gardeners can keep off the birds and other wildlife trying to eat the seeds, they can have a large harvest. The bright yellow blooms will make a rainbow garden, brightening up any space.

However, planting the sunflower seeds is a skilled job. Plant seeds no deeper than the full length of itself. Smaller sized sunflowers can be spaced a foot apart. Larger varieties will need to be spaced as far apart as three feet. This allows ripe plants enough space for the seed heads to ripen without knocking the ripe seeds off before gardeners have a chance to harvest them.

Most sunflower seeds, especially those with eatable seeds, are large enough to handle without the need for seed sorters. This is why sunflowers make an excellent choice for a children's garden as well. Gardeners will want to mix plenty of soil fertilizers into the ground as sunflowers tend to be heavy feeders.

Sunflowers can be slow starters and the tiny new plants don't seem to grow very rapidly. Gardeners should protect the new plants as they begin to grow. Once they get going, sunflowers are able to out-grow many weeds, making them easier to grow in the home vegetable garden than many other plants.

Most pests and diseases are not a bother to the sunflower, however, more than one gardener has said that their lovely looking plants were ravaged overnight by hungry squirrels, mice or birds. To preserve their harvest, gardeners can cover the ripening seed head with stockings or net cloth to help keep the destroyers off the seeds.

Planting sunflower seeds is easy and can help even the smallest gardener feel successful in their gardening attempts.

1.What is the passage mainly about?

A. How to plant sunflowers. B. Different kinds of sunflowers.

C. Ways to preserve sunflowers. D. Tips on making your garden bright.

2.Why should enough space be left between sunflowers?

A. To prevent birds from eating sunflower seeds.

B. To offer the sunflowers enough sunlight.

C. To protect the ripe seed heads before harvest.

D. To help the sunflowers grow stronger.

3.Why do children love to grow sunflowers in their garden?

A. They want to decorate their garden with sunflowers.

B. The seeds are easy to plant and unnecessary to sort.

C. Sunflowers don’t need too much soil fertilizer.

D. Tiny new sunflowers can grow very fast

4.Which of the following can replace the underlined word “ravaged” in Paragraph 5?

A. Destroyed. B. Covered.

C. Surrounded. D. Removed.

查看答案和解析>>

科目：高中英語 來源：2017屆河南省天一大聯(lián)考高三階段性測試（四）（B卷） 英語試卷（解析版） 題型：完形填空

Lost & Found

That night, when I arrived at the door of my building, I noticed a man walking behind me. I thought he was a neighbor I hadn’t met. I did a _______ neighborly thing and held the door for him. But when I turned, he took away everything I had and ran away. I was _______. From then on, I looked over my _______, never fully at ease. It cost me my sense of trust in my _______.

A year passed, I got home one night and found an envelope under my door. Inside was a _______ weather-beaten driver’s license. I could _______ make it out because the address was nearly worn away. But the face on that _______ was mine. And the note in it said; Sarah Sweeney, if you still live here, call us at this _______.

Feeling _______, I walked up and down in my living room trying to think of ________ someone would contact (聯(lián)系) me like this. If there’s a Mugger Playbook (搶劫犯劇本) this was the final long game! Now he’s checking my ________ to get more money?

But I called the number.

Then a(n) ________ voice of a little girl got on, “Hello! Are you Sarah Sweeney? My sister and I found your purse in the woods!”

I could ________ she was jumping up and down as she spoke. She and her younger sister carefully ________ bits of paper, pieced together the clues to find me and ________ my wallet and everything inside. I was completely ________. They were giving me a sense of relief.

I asked her, “How can I ________ you?”

“Hang on!” She pulled the phone away and ________ with her sister; then I heard “ICE CREAM!"

Twenty minutes later, I was at their door. I ________ a box of ice cream. And these two little girls gave my wallet and a renewed sense of ________.

1.A. meaningful B. smart C. polite D. necessary

2.A. robbed B. cheated C. suspected D. caught

3.A. head B. shoulder C. door D. neck

4.A. colleagues B. friends C. neighbors D. family

5.A. rotted B. new C. useful D. cheap

6.A. easily B. merely C. probably D. hardly

7.A. envelope B. license C. wallet D. note

8.A. point B. time C. number D. place

9.A. worried B. sad C. satisfied D. disappointed

10.A. why B. whether C. how D. when

11.A. room B. wallet C. address D. account

12.A. angry B. sweet C. rough D. cold

13.A. see B. notice C. understand D. tell

14.A. replaced B. unfolded C. counted D. selected

15.A. return B. check C. repair D. clean

16.A. confused B. lost C. discouraged D. moved

17.A. treat B. find C. reward D. inform

18.A. discussed B. agreed C. argued D. competed

19.A. contributed to B. handed over C. paid for D. packed up

20.A. loss B. duty C. trust D. direction

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年安徽省馬鞍山市高一下學(xué)期開學(xué)考試英語試卷（解析版） 題型：短文改錯(cuò)

Happiness is very importance in my daily life. This is why it makes me feel cheerful, and full joy.

If you felt happy, you will make others feel good. When I don’t feel cheerful, I try to remember good moments to making me feel better. When I miss some friends or family member I also try to remember those happy moments we were spent together. In my opinion, the best way to help people be happy in life are to make them laugh every time we are feeling down. Also by give them love you can make them feel sure about themselves.

查看答案和解析>>

科目：高中英語 來源：2016-2017學(xué)年山東省高二下學(xué)期第一次月考英語試卷（解析版） 題型：書面表達(dá)

假設(shè)你是光明中學(xué)的高中生李華。你校擬選拔一批優(yōu)秀學(xué)生，利用暑期到藍(lán)天希望小學(xué)為學(xué)生輔導(dǎo)英語。你希望參加此活動(dòng)。請根據(jù)以下提示，用英語給校評選組寫一封申請信：

1. 個(gè)人優(yōu)勢（如性格、語言能力等）。

2. 輔導(dǎo)計(jì)劃

注意：

1.詞數(shù)120左右；

2.可適當(dāng)加入細(xì)節(jié)，以使內(nèi)容充實(shí)、行文連貫；

3. 信的開頭和結(jié)尾已給出，不計(jì)入詞數(shù)。

參考詞匯：

藍(lán)天希望小學(xué)Lantian Hope School  小學(xué)生pupil

Dear Sir or Madam,

I am Li Hua from Class One, Senior Two. _________________________________________________

___________________________________________________________________________________

___________________________________________________________________________________

___________________________________________________________________________________

___________________________________________________________________________________

_______________________________________________________

Yours Sincerely,

Li Hua

查看答案和解析>>

科目：高中英語 來源：陜西省2016-2017學(xué)年高一下學(xué)期第一次月考（3月）英語試卷 題型：短文改錯(cuò)

文中共有10處語言錯(cuò)誤，每句中最多有兩處，每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。

增加：在缺詞處加一個(gè)漏字符號(hào)（∧），并在其下面寫出該加的詞。

刪除：把多余的詞用斜線（\）劃掉。

修改：在錯(cuò)的詞下劃一橫線，并在該詞下面寫出修改后的詞。

注意：1.每處錯(cuò)誤及其修改均限一詞。

2.只允許修改10處，多者（從第11處起）不計(jì)分

As is known to all, that sports are good for people’s health. People all over the world enjoyed sports. They buy tickets or turn on their TV sets watch the games. Sports change after seasons. People play different games in different seasons. Sometime they play inside, but usually they play outside. Sports can found here or there. Some sports are rather interesting and people everywhere like it. People from different countries can’t understand each other, but after game they often become good friend.

查看答案和解析>>

科目：高中英語 來源：陜西省2016-2017學(xué)年高一下學(xué)期第一次月考（3月）英語試卷 題型：單詞拼寫

“You did a bad job!” She _____________(嘆息).

查看答案和解析>>

科目：高中英語 來源：陜西省2016-2017學(xué)年高一下學(xué)期第一次月考（3月）英語試卷 題型：單項(xiàng)填空

No potatoes for me—I’m _______ a diet.

A. at B. in C. on D. with

查看答案和解析>>

科目：高中英語 來源：湖北省2016-2017學(xué)年高二2月聯(lián)考英語試卷 題型：七選五

The word “addiction” usually makes you think of alcohol or drugs.?1.Some people are compulsive (難以自制的) shoppers. Others find it impossible to pull themselves away from their work. Still others spend countless hours watching TV or playing computer games.

2.Many people enjoy going to malls or stores more and more every day, but it’s more than a common hobby for some of them. They have turned into shopaholics(購物狂). They are people who simply enjoy shopping and walking around spending money without being able to stop doing it. They are hooked(吸引) on shopping and usually buy things that they don’t need. Even though they don’t have enough money, they buy everything they want.

3.There isn't a specific answer. Some people go shopping when they are sad, worried, upset or lonely and they want to feel better. They use this activity as a way to forget their problems. Shopaholics say that they feel more important and better after they buy something.4..

Shopaholism seems to be a harmless addiction, but it can bring out problems. Some of them can be psychological. If this is the case, people addicted to shopping should go to a support group to help them break this habit. However, the process, like for most addictions, is long, and they suffer a lot.5. They just think about satisfying their feelings, so they spend money they don’t have. They get deep in debt, and they can even go bankrupt(破產(chǎn)的) and get sent to prison.

A.Once you are addicted to alcohol or drugs, it is difficult to get rid of.

B. Over the years, shopping has become a very common activity.

C. People addicted to computer games consider the games as great ways to amuse themselves.

D. However, in modern society we are seeing some new kinds of addictions.

E. The question is, why do they have this addiction?

F. They also tend to have this addiction when they feel guilty.

G. It can also cause financial problems

查看答案和解析>>

同步練習(xí)冊答案