【題目】20% of the students of Nan Shan Senior High the school colorful clubs so far.

A.has joined B.has been joined

C.have joined D.have been joined

【答案】C

【解析】

試題分析:加入俱樂(lè)部,應(yīng)該用join the club主動(dòng)形式;so far亦今為止,與現(xiàn)在完成時(shí)連用;20% of the students作主語(yǔ),謂語(yǔ)應(yīng)該用復(fù)數(shù)。故選C。

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】Many Americans concerned about pollution are demanding cleaner supplies of energy. The demand has resulted in increased research about ethanol fuel. Ethanol is an alcohol that can be mixed with gas. It burns up most of the pollutants in gas. It replaces some of the chemicals that are known to cause cancer, and it can be produced in the United States.

Some experts say that in the future ethanol will replace some of the oil imported into America. Today ethanol is less than one percent of total American fuel supply. The head of the National Corn Growers Association, Kieve Hard, says ethanol will provide twenty-five percent of the fuel supply by 2030. The organization is involved in the production of ethanol because it can be made from corn.

One company in the American Midwest says it is starting to produce ethanol because of demands from people and from the government. The Congress approved the Clean Air Act in 1990. The company says this means the market for ethanol will expand. The company is a major producer of corn starch that can be used to make ethanol.

At Texas A and M University Professor Mark Holzapple produces ethanol from materials found in solid waste. He has developed a way to turn materials like paper into simple sugar. He then uses yeast to turn the sugar into ethanol. Professor Holzapple says two hundred liters of ethanol fuel can be produced from one ton of solid waste.

A professor at the University of Arkansas, John Geddie, is exploring another way to make ethanol. He is using acids on paper material. He says a large factory could produce ethanol from waste paper at a cost about the same as the cost of producing gasoline.

Environmentalists support the use of ethanol because it turns solid waste into a useful product. Professor Holzapple says law makers in industrial nations need to support the development of this clean, less expensive fuel of the future.

【1】Why does the interest in ethanol fuel increase in the United States according to the passage?

A. Ethanol products are known to cause cancer.

B. Ethanol can remove some harmful pollutants from gas.

C. The production of ethanol is protected by law.

D. Ethanol-fueled automobiles are cheaper than gas-fueled ones.

【2】In this passage, what is the significance of the Clean Air Act passed by American Congress in 1990?

A. It will increase the consumers’ demand for ethanol as a fuel.

B. It may increase the cost of producing gas.

C. It reflects the view of the government on automobiles production.

D. It limits the ethanol production of one company in the American Midwest.

【3】The author mentions all of the following resources for making ethanol except____.

A. corn starch B. natural gas

C. waste paper D. solid waste

【4】What does Professor Mark Holzapple think of the development of ethanol in countries?

A. It needs the cooperation of many chemists.

B. It associates with the use of advanced equipment.

C. It will improve the use of heat from exhaust gases.

D. It requires the support of the government.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】A 19-year-old teenager from Guangdong nicknamed Niko demanded an apology from Youku, which he believed violated their copyrights as it used his team's photos without _________.

A. appreciation B. approval

C. assistance D. assessment

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】______yourself with positive people and you will keep focused on what you can do instead of what you can’t.

A. Surrounding B. Surrounded

C. Surround D. Having surrounded

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】The number of various educational programs is increasing, _______ important roles have been realized by more and more people.

A.whose B.where C.which D.that

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】 —Wow, you have a really good voice. I_____ you were good at singing.

—Thank you.

A. havent known B. hadnt known

C. didnt know D. dont know

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】根據(jù)下面的對(duì)話內(nèi)容,從方框內(nèi)的選項(xiàng)(A、B、C、D、E、F或G)中選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

注意:因機(jī)讀卡上沒(méi)有對(duì)應(yīng)的EFG選項(xiàng),若選E, 請(qǐng)將對(duì)應(yīng)題號(hào)AB兩項(xiàng)同時(shí)涂黑;若選F,請(qǐng)將對(duì)應(yīng)題號(hào)AC兩項(xiàng)同時(shí)涂黑;若選G,請(qǐng)將對(duì)應(yīng)題號(hào)AD兩項(xiàng)同時(shí)涂黑。

—David, did you say you had a party last Saturday?

1

—Sorry. I didn’t get it.

—But I invited you. I sent an e-mail to you one week before the party.

2 I’m sorry I didn’t tell you about it.

—That’s OK. But I was kind of upset that you weren’t there.

—I was upset, too. You know, we took a bike trip last weekend. But it was just awful. We got lost for four hours.

3

Well, let’s go out for lunch today. I want to do something for your birthday.

4

I know. But I really want to.

5 So anyway, I have to go now. I will have a meeting at 9:00.

—See you later and happy birthday.

A.Oh, that’s terrible.

B.You don’t have to.

C.That’s very nice of you.

D.Yes, it was my birthday party.

E.No, I don’t know about it.

F.And we enjoyed ourselves.

G.Oh, I had got a new e-mail address.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】Every time __________ I called on him,he was very busy.

A.during B.when

C.in which D./

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源: 題型:

【題目】Oh, look! Here's a photo __________ in my classroom at primary school. Can you recognize me in it?

A. taking

B. was taken

C. taken

D. been taken

查看答案和解析>>

同步練習(xí)冊(cè)答案