【題目】 Lead has proved to be a useful metal. 1 It goes into car batteries and also helps make bright pigments, used to paint walls, metal work and toys.

2 In the worst cases it causes comas(昏迷)and death. More often its effects are slow but harmful. Research shows that lead is a threat to little babies, who are most likely to take in dust and paint chips that contain lead. Their brains can be easily harmed. 3

The dangers of lead have long been known. American banned it from paint 40 years ago, and by the late 1990s leaded petrol had been stopped gradually in almost all rich countries. But the effects continue to exist. 4 The situation is more alarming in the poor world, where the use of lead-based paints is spreading. As people in Asia and Africa become richer, they start to decorate their homes, but the paint they use, even from pots labeled "lead-free" often contains it.

It is neither difficult nor expensive to stop using lead. 5 And industrial use is no exception, because the contamination (污染物)spreads and industrial paint inevitably finds its way into the consumer market. Yet only four sub-Saharan African countries have formally placed bans and local factories are often unaware of the harm that lead causes.

A. Yet lead is also a poison.

B. It turns up everywhere.

C. All countries should ban lead in paint.

D. Half a million American children are diagnosed with lead poisoning.

E. There is no excuse for poor countries to repeat the mistake of rich ones.

F. Taking some simple precautions can help protect you and your family from lead exposure.

G. But only years after exposure are the results apparent in lower IQ and learning disabilities.

【答案】

1B

2A

3G

4D

5C

【解析】

本文是一篇說明文,介紹了鉛的應(yīng)用及危害。

1根據(jù)空后的“It goes into car batteries and also helps make bright pigments, used to paint walls, metal work and toys.”可知,它可用于汽車電池,也可用于制造明亮的顏料,用于粉刷墻壁、金屬制品和玩具,故B項(它的應(yīng)用很廣泛)符合語境。

2根據(jù)空后的“In the worst cases it causes comas(昏迷)and death.”可知,在最嚴重的情況是它可以導(dǎo)致昏迷和死亡,故A項(然而,鉛也有毒)符合語境。

3根據(jù)空前的“Research shows that lead is a threat to little babies, who are most likely to take in dust and paint chips that contain lead. Their brains can be easily harmed.”可知,研究表明,鉛對嬰兒是一種威脅,他們最有可能吸入含有鉛的灰塵和涂料碎片,這讓他們的大腦很容易受到傷害,故G項(但僅僅幾年之后,這一結(jié)果就在智商和學習障礙方面顯現(xiàn)出來)符合語境。

4根據(jù)空前的“But the effects continue to exist.”可知,鉛的影響仍然存在,此處舉例說明它的影響,故D項(50萬美國兒童被診斷出鉛中毒)符合語境。

5根據(jù)空后的“And industrial use is no exception”可知,應(yīng)全面禁止鉛的使用,工業(yè)用途也不例外,故C項(所有國家都應(yīng)該禁止涂料中含鉛)符合語境。

練習冊系列答案
相關(guān)習題

科目:高中英語 來源: 題型:

【題目】423日是世界讀書日。假定你是李華,你的美國朋友John來信詢問你校讀書日的相關(guān)活動,請給他寫一封回信。

內(nèi)容包括:

1. 主題:誦讀經(jīng)典名著,傳承中華文化;

2. 活動安排;

3. 活動的意義。

注意:1. 詞數(shù)100左右;

2. 可適增加細節(jié),以使行文連貫;

3. 開頭和結(jié)尾已為你寫好。

參考詞匯:經(jīng)典名著classics

Dear John,

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】WHAT YOU SHOULD KNOW ABOUT CAR RENTAL IN CANADA

When you fly into Canada you don’t have many choices. A car is often the only way to reach the spectacular destinations which Canada is famous for. Most major car rental companies have offices at airports, towns and cities across the country.

What do you need in order to rent a car in Canada?

● Valid Driver’s license and International Driver’s Permit if your license is not in English or French.

● When picking up your car, you may have to show your passport and a return airline ticket.

● Credit Card for the deposit—Renting a car in Canada without a credit card is impossible.

Fly-Drive Packages from Home

You may get the best deal on car rental if you book a fly-drive package from home or if you book a long time in advance. Rental coast varies to a great extent, depending on the time of year, type of vehicle and length of rental.

Minimum Age

The driver has to be at least 21 years old and have a minimum of 12 months of driving experience in order to rent a car in Canada. A “Young Renter Fee” will be applied to your car rental, if you are between the ages of 21 and 24 and will be charged on top of the rental rate.

Insurance

Most car rental companies in Canada offer a collision damage waiver (CDW) for an additional charge. Some credit card companies include CDW insurance on car rentals when you use their cards to pay for the rental. Check your credit card’s terms and conditions.

Fuel and Service Stations

Most rental cars use unleaded gas. Remember, driving distances in Canada are long and a large amount of your vacation budget will go towards gasoline. Filling up in larger cities is usually cheaper than in small towns. If you are heading up to the Northwest Territories, gas prices will be much higher than in the south.

Cross-Border Travel

Some rental companies don’t allow their cars to drive across borders, like from Canada to the US or across provinces. If this is the case, watch out; GPS may be used to track your route.

1You’ll have to pay extra fees for your car rental in Canada if you________.

A. book a fly-drive package from home

B. are 22 with one-year driving experience

C. use a credit card offering CDW insurance

D. have no passport or return airline ticket

2What are you encouraged to do when you rent a car in Canada?

A. Use GPS to find your way.B. Provide a license in English.

C. Fill up the car in large cities.D. Drive across borders to America.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Holidays are the main times to see both sides of my family.

At Thanksgiving, my mom, dad, brother and I go to my dad’s side of the family, my grandpa’s. When I was in 2nd grade, my grandma got in a car accident only miles from their house. At the time, I was in school. I was checked out and brought to church. Since then, holidays have never been the same. However, Thanksgiving is still good, although it would be better with grandma. At my grandpa’s house, my uncle, aunt, dad and mom all get the dishes prepared for the feast. When the final family members arrive, and the food is downstairs, we dig in, the little ones first.

Christmas is a little different. We have Christmas with my mom’s side at my uncle’s house, usually on Christmas Eve. We have dinner with homemade cupcakes for dessert, and relax until it is time to open presents. The kids get the most and we usually take a family photo. After everybody’s gifts have been opened, my family say goodbye and go home.

Easter has been a little different in the past few years. It started 3 years ago, when my family hosted my mom’s side of the family. We put our dishes we made for the day on the counter. We kids go downstairs and play ping-pong or football. We are called up when everything is ready and begin eating. The kids go to a table in the living room, and the adults use the kitchen table. That is usually the Easter day for us.

Each tradition gets better and better each year for some reason. I wonder what new traditions my family might come up with in the coming years.

1What happened to the writer when he was in 2nd grade?

A. He lost his grandma.

B. He dropped out of school.

C. He felt Thanksgiving was not as good as before.

D. He didn’t like going to his mum’s side of the family.

2We can learn from the passage that on Christmas, .

A. a family photo is usually taken

B. presents are only given to the kids

C. the kids play ping-pong or football

D. the adults have dinner in the kitchen

3How does the writer feel about future holidays with his family?

A. Patient and encouraged. B. Curious and eager.

C. Worried but grateful. D. Tired but hopeful.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】聽下面一段較長對話,回答以下小題。

1What is the basic purpose of the IQ tests?

A. To test who is brighter.

B. To test the ability in language and numbers.

C. To judge one’s talents.

2What makes so many unhappy parents in the world?

A. Their children being stupid.

B. Their children’s failing in the exams.

C. Their children’s abilities not being developed.

3Why do some children do badly in school exams?

A. They are poor in words and numbers.B. They do not study hard enough.

C. They are looked down upon by others.

4How can a person be happy?

A. Putting his/her skills to good use.B. Having a higher IQ.

C. Doing well in the exams.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】假定你是李華,外教Lucy業(yè)余時間在學漢語,她向你咨詢學漢語的一些途徑,請你給她寫封郵件,向她推薦收聽龍巖人民廣播電臺,內(nèi)容包括:

1.介紹廣播電臺情況:頻率:FM92.5;內(nèi)容豐富,,新聞、體育、生活……

2.多聽廣播的好處:有助于了解龍巖,有助于學習漢語。

注意:1.字數(shù)100詞左右;

2.可以適當增加細節(jié),以使行文連貫;

3.開頭、結(jié)尾已為你寫好(不計入總詞數(shù))。

4.參考詞匯:頻率: frequency

龍巖人民廣播電臺: People' s Broadcasting Station of Longyan

Dear Lucy,

I am glad to receive your email about how to learn Chinese well.

_______________________________________________________________________________________________________________________________________________________________________________________________

I hope you will enjoy it. Best wishes!

Yours,

Li Hua

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】Daisy, a high school student, 1 name comes from a sort of wild flower, is concerned about wildlife. She has longed2(learn) something about wildlife around the world.

One day, she took a magical journey to three places on a flying carpet. In Tibet, she met an antelope looking sad. She was told that they were being hunted mercilessly for the fur, which was used to make3(sweater) for people, so they became an endangered species. At this, she realized protection was badly needed there. The carpet carrying Daisy4(fly) so fast that next minute they arrived in Zimbabwe, 5she came across a happy elephant. It said, “By now, something has been done to protect us from being killed by farmers while money from tourism goes to the farmers. 6number of us is growing and the farmers are happy as well.” After hearing that, Daisy burst into laughter 7relief. All of a sudden, the carpet rose again and Daisy was taken to rainforest. There she saw a monkey rubbing 8(it) with an insect over his body, because it had a drug that could affect mosquitoes. There, Daisy appreciated how animals could live together in peace.

When they landed home, everything began to disappear, for it was 9 (actual) a dream. Anyhow, Daisy has learned that great importance should 10 (attach) to wildlife protection and she is now determined to do something as the WWF suggests.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】How has the bar changed?

A.It is cleaner.

B.It has new owners.

C.It doesn't serve sunflower seeds.

查看答案和解析>>

科目:高中英語 來源: 題型:

【題目】聽下面一段較長對話,回答以下小題。

1When does this conversation take place?

A. In the morning.

B. In the afternoon.

C. In the evening.

2What is the movie probably about?

A. Some little dogs.

B. Some interesting people.

C. An interesting love story.

3What happened to the woman yesterday?

A. She became ill for no reason.

B. She felt bad after eating some chicken.

C. She had to look after Jim at home.

4What's the weather probably like today?

A. Rainy. B. Foggy. C. Fine.

查看答案和解析>>

同步練習冊答案