A lot of fish in the river _______ recently, because there is lots of pollution.

A. has died B. has been dead

C. have been dead D. have died

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:初中英語 來源:2016屆江蘇泗陽縣兩校九年級(jí)上學(xué)期第一次聯(lián)考英語試卷(解析版) 題型:單項(xiàng)填空

It was a difficult time for the quake-hit victims in Ya’an, but they didn’t_________ hope.

A. give up B. give off

C. give in D. give out

查看答案和解析>>

科目:初中英語 來源:2015-2016學(xué)年山東臨邑第五中學(xué)七年級(jí)上第一次摸底英語試卷(解析版) 題型:單項(xiàng)填空

Do you want _______ my pen pal?

A. to B. be C. to be

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇無錫市南長(zhǎng)區(qū)八年級(jí)下期末英語試卷(解析版) 題型:單項(xiàng)填空

The door is __________ narrow for the elephant __________.

A. too; to go B. enough; to go

C. so; to go to D. too; to go through

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇南京市七年級(jí)下期中英語試卷(解析版) 題型:單項(xiàng)填空

— Where does your uncle work? — He works in Paris, the capital of _______.

A. France B. the USA C. Thailand D. Japan

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年甘肅臨澤縣第二中學(xué)八年級(jí)下期末英語試卷(解析版) 題型:單項(xiàng)填空

My mom asked me ___________ her to do housework.

A. help B. to help

C. helping D. help with

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年陜西師范大學(xué)附屬中學(xué)九年級(jí)上期中英語試卷(解析版) 題型:翻譯

完成句子。根據(jù)所給漢語意思,用單詞或短語完成下列英語句子。(共5小題,計(jì)10分)

1.在公共場(chǎng)合我們應(yīng)該有禮貌。

We in public.

2.現(xiàn)在中國(guó)富強(qiáng)了,我們?yōu)樽鎳?guó)而驕傲。

Now China is rich and strong. We our country.

3.請(qǐng)注意你的發(fā)音。

Pay attention to , please.

4.這架飛機(jī)模型是由木頭制成的。

The model plane .

5.這個(gè)筆記本肯定是屬于瑪麗的,上面有她的名字。

The notebook must because it has her name on it.

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇南京市九年級(jí)下中考一模英語試卷(解析版) 題型:單項(xiàng)填空

--- Mum, why don’t you have the robot ________ housework for you?

--- Oh, it caught a virus. I should have it _________ at once.

A. done; repair B. do; repaired

C. done; repaired D. do; repair

查看答案和解析>>

科目:初中英語 來源:2014-2015學(xué)年江蘇揚(yáng)州市中考二模英語試卷(解析版) 題型:閱讀理解

You are probably familiar with the saying:An apple a day keeps the doctor away.A recent research carried out by the Chinese University of Hong Kong may change the saying:

An apple a day may keep aging away.

The research chose fruit flies(果蠅), as they share many genes(基因)with humans.The fruit flies were either fed normally or had an apple extract(濃縮物) added to their diet.

It turned out that those fruit flies that were given apple extract lived about 55 days—five days longer than the flies that were normally fed.The research group also found it easier for the flies to walk,climb and move about as they aged.

According to the result, the researchers believed that the antioxidants(抗氧化劑) in the apple extract helped clean up dangerous chemicals(化學(xué)物質(zhì)) that cause illnesses,as well as aging.

In another study,researchers examined diets of thousands of women.They discovered that those who regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke.

The apples’ genetic code(遺傳密碼) was discovered recently.It allows scientists to develop nicer and healthier fruits.Researchers are already using the information to grow a kind of apples full of antioxidants that can keep eyes and joints healthy and protect humans against heart illnesses and cancer.

Apples that kill the desire(欲望) to eat could also be produced, with the first “extra-healthy’’ apples on supermarket shelves within just four or five years.

The team that keeps studying apple DNA includes 100 scientists from five countries.Their research also suggests that around 65 million years ago, when dinosaurs began to die off the plant,which would finally become today’s apple tree, experienced a great genetic change.The number of many of its genes doubled.The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches,strawberries and other related fruits.

1.Why were fruit flies used for the research?

A.Because they have a similar diet to humans.

B.Because they have a history as long as apples.

C.Because they share a lot of genes with humans.

D.Because they feed on nothing but apple extract.

2.What result did the researchers find out?

A.Apples produce chemicals that can change human genes.

B.Apples have antioxidants that kill chemicals that cause aging.

C.Apples are rich in vitamins that are needed in humans’ bodies.

D.Apples produce chemicals that make apples taste more delicious.

3.What can we infer(推斷)from the passage?

A.Eating apples may bring us more advantages than we might believe before.

B.People who have the habit of eating apples don’t need to see a doctor.

C.Apples that kill the desire to eat are already available in supermarkets now.

D.People will eat apples instead of peaches and strawberries from now on.

查看答案和解析>>

同步練習(xí)冊(cè)答案