The air_______ of Shenzhen in February ranked the 10th among 74major cities in China.

A. quarter B. quality C. quantity

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2014-2015學(xué)年山東諸城市九年級中考三模英語試卷（解析版） 題型：單項(xiàng)填空

--- It’s said that Lee Kuan Yew，the founding father of Singapore，____ at the age of 91.

---I’m sorry to hear that. He is thought to be a real hero in his country.

A. passed away B. took away

C. went away D. put away

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年黑龍江鐵力市九年級下第二次模擬考試英語試卷（解析版） 題型：單項(xiàng)填空

–When _____for Australia, do’you know?

-I’m not sure. When he ______ . I’II let you know.

A. he leaves; leaves

B. will he leave; will leave

C. will he leave; leaves

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年廣東肇慶第四中學(xué)九年級一模英語試卷（解析版） 題型：單項(xiàng)填空

—Which do you prefer, milk or coffee?

—I like ______ of them. Tea is my favorite.

A.both B.either C.neither D. all

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年廣東深圳市九年級第三次模擬英語試卷（解析版） 題型：單詞拼寫

A man walked into a pub and asked for three beers. The barkeeper 1.__________(surprise)and served the man. This repeat several times, and the town was talking about the man who was ordering three beers 2.__________ the same time. Later, the barkeeper asked 3._________he ordered three beers all the time. The man answered, “My two brothers live abroad at the moment, 4._________in France, and the other in Italy. We have made 5.__________ agreement that each of us going to a pub would order extra two beers and it will help keep the promise.

One day, however, the man 6.__________(come) to the pub and ordered only two, not three 7. __________ usual. The barkeeper served him with a sad feeling. The next day all the people in the town talked about the news. Some people prayed, and 8.__________were quietly sad.

The man ordered two beers again, the barkeeper said to him,“ I would like to offer sorrow to the9.__________(die) of your brother.” The man considered this for a moment, saying,“ Oh, my two brothers are alive well. I just made a decision to give up 10. __________(drink).

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年廣東廣州市畢業(yè)班綜合測試一英語試卷（解析版） 題型：單項(xiàng)填空

Every night I read books for _________ hour before going to ________ bed.

A. a , a B. an, / C. an, the D. a, /

查看答案和解析>>

科目：初中英語 來源：2015年初中畢業(yè)升學(xué)考試（浙江金華卷）英語（解析版） 題型：閱讀理解

It happens every spring. Flowers come out everywhere on the same day. But how do plants “know” when to flower?

For years, it has been a difficult question for scientists. But a US research group may have finally answered it—the secret lies in a protein(蛋白質(zhì))called FKF1. This helps plants to know when the days become long and when they get short. Then they can tell the seasons are changing.

Researchers found the FKF1 protein when they were studying a plant called Arabidopsis(擬南芥). It is sensitive(敏感的)to sunlight, and can be made active by sunlight.

Plants produce this protein every day in the late afternoon all year. If there is no light at this time, for example in winter when the sun goes down early, the protein won’t be active. But when spring comes and the days get longer, the FKF1 protein can be made active by day light and the plants “know” it is time to flower. “If there is light in the late afternoon, plants will know that the days are getting longer and that it is the best time for flowers to come out,” explained Takato Imaizumi, leader of study. But when conditions are poor for growing, such as during autumn or winter when the weather is cold and days are short, plants won’t flower.

Although researchers have only studied how the FKF1 protein works in the Arabidopsis, they believe that it is the same with many other plants, including crops such as rice and wheat. This could be useful to the agricultural industry.

“If we can control when flowers come out, we might be able to increase crop production,” Imaizumi said.

1. The passage is mainly about ____.

A. how plants “know” when to flower

B. what people can do with plants

C. how seasons are changing

D. what kind of plant Arabidopsis is

2.Scientists found the FKF1 protein when they were____.

A. answering a question

B. controlling the clours of flowers

C. planting flowers in the garden

D. studying a plant called Arabidopsis

3.The best time for flowers to come out is when____.

A. it rains in spring

B. there is light in the late afternoon

C. it is getting dark

D. the sun goes down early

4.Scientists believe that____.

A. other plants also know when to flowers

B. flowers are more valuable than fruits and vegetables

C. people have known how to control when flowers come out

D. if the weather is cold and days are short, plants will flower

查看答案和解析>>

科目：初中英語 來源：2015年初中畢業(yè)升學(xué)考試（黑龍江牡丹江卷）英語（解析版） 題型：單項(xiàng)填空

The Chopsticks Brothers ______ sings Little Apple won the International Song Award in 2014.

A.who B.what C.which

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年江蘇江陰華士實(shí)驗(yàn)中學(xué)九年級下期中英語試卷（解析版） 題型：單詞拼寫

根據(jù)句意和漢語注釋，在答卷標(biāo)有題號的橫線上，寫出單詞的正確形式。

1.One of the first ___________ (歐洲人) to discover America was Christopher Columbus.

2.—I would never come to this restaurant again. The food is terrible!

— _______________ (也不) would I.

3.Tom's cousin is a ___________(活潑的)child and popular with everyone.

4.When Steve Jobs won the competition, he was （頒發(fā)）with a medal.

查看答案和解析>>

同步練習(xí)冊答案