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The man showed us such a heavy stone ________ no one could lift it.

A．that B．as C．which D．and

【解析】句意：那人給我們展示了一塊沒人能搬起來的大石頭。as引導的定語從句中，as要么作主語，要么作賓語，而該句中lift后有賓語it，所以不能選擇as，該題屬于such...that狀語從句，that只作連詞，不作成分。

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科目：高中英語 來源：2014年高考限時訓練（2）英語試卷（解析版） 題型：閱讀理解

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It is called the United States Conference of Mayors' Climate Protection Agreement.Local leaders have agreed to follow the suggestions of the Kyoto Protocol in their communities.They have also agreed to urge state and federal governments to follow these suggestions.One goal is to reduce air pollution to the 1990 levels by 2012.

A “green” city might work on several kinds of environmental goals and programs.These include air quality，reducing electricity use, green building, public health, the reuse of materials, water quality and clean transportation.

The Natural Resources Defense Council works to protect the environment through action, law and science.One of its online projects is called Smarter Cities, which lists some cities that have made important environmental steps.

Washington，D.C.is also a leading city for green roofs，with over 92,000 square meters of green rooftops.The city also launched a program called “Skip the Bag，Save the River.”Stores charge people a five?cent tax for using plastic or paper shopping bags instead of reusable bags.Money from the tax will be used to clean up a local river.

New York City is using water as a renewable energy source.For several years, the city has experimented with water in the East River to create energy.Officials operating the program recently asked for permission to put into place 30 river turbine devices.

The people of Portland, Oregon are among the top recyclers in the nation.People living there recycle over half of the waste they throw out.The city has also worked to provide green transportation by providing safe bike paths and free parking spaces where electric cars can get recharged.

In Oakland, California, you can ride on one of several public hydrogen?powered(氫氣作燃料的) buses.These buses release zero pollution into the air.However，they cost about five times more than common buses.

1.The United States Conference of Mayors' Climate Protection Agreement is aimed at________.

A．reducing energy use

B．reducing air pollution

C．improving public health

D．reusing waste materials

2.Why are shoppers charged a five?cent tax for buying shopping bags?

A．To clean a local lake that has been polluted.

B．To get enough money for the green roof project.

C．To prevent shoppers from using reusable bags.

D．To collect money for an environmental project.

3.New York City is cited as an example of________.

A．building green rooftops

B．making transportation clean

C．being good at recycling waste

D．using renewable energy source

4.Which of the following cities encourage citizens to use bicycles?

A．Washington，D.C.　B．New York.

C．Portland.　D．Oakland.

5.One obvious disadvantage of adopting hydrogen?powered buses is________.

A．its high cost　B．side effect

C．zero pollution　D．large space

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