You cannot tell________looking at someone whether or not he has HIV.

A．without　B．by

C．for　D．with

 

B

【解析】考查介詞辨析。句意：你不可能憑外表來判斷一個人是否攜帶HIV病毒。by意為“通過，用……，靠……”，符合句意。

 

練習冊系列答案
相關習題

科目：高中英語 來源：2014高考名師指導分項拿分專訓動詞時態(tài)、語態(tài)＋閱讀理解英語試卷（解析版） 題型：單項填空

(2013·烏魯木齊高三第一次診斷性測驗)—Hi, Kathy! Any plans for tonight?

—Not yet, Tim. I ________ where to go for dinner.

A．was wondered B．was wondering

C．will wonder D．had wondered

 

查看答案和解析>>

科目：高中英語 來源：2014高考名師指導分項拿分專訓代詞、介詞＋閱讀理解英語試卷（解析版） 題型：單項填空

(2013·江蘇高考)I am always delighted when I receive an e?mail from you.________ the party on July 1st, I shall be pleased to attend.

A．On account of B．In response to

C．In view of D．With regard to

 

查看答案和解析>>

科目：高中英語 來源：2014年高考限時訓練（3）英語試卷（解析版） 題型：單項填空

—I________as a cashier for 10 straight years, but I never had a sense of achievement.

—Is that why you set up your own business?

A．worked　B．have been working

C．would work　D．have worked

 

查看答案和解析>>

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

The United States is not part of the Kyoto Protocol.But since 2005 more than 1,000 mayors across the country have agreed to sign their own version of the protocol.

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

 

查看答案和解析>>

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：單項填空

________ the famous actress wants to offer to her fans is honesty and happiness.

A．Which　B．What

C．That　D．Whom

 

查看答案和解析>>

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：單項填空

A survey________public last month shows that Japan moves behind other nations in teaching youngsters right from wrong.

A．was made　B．was making

C．made　D．being made

 

查看答案和解析>>

科目：高中英語 來源：2014年高考限時訓練（1）英語試卷（解析版） 題型：單項填空

—Tony, you must have noticed the student who broke the glass.

—I'm sorry.I________attentively.

A．studied　B．was studying

C．am studying　D．would study

 

查看答案和解析>>

科目：高中英語 來源：2014年高考貫穿知識點看“線”（名師知識點總結訓）：定語從句英語試卷（解析版） 題型：單項填空

(2013·福建，24)It's helpful to put children in a situation ________ they can see themselves differently.

A．that B．when C．which D．where

 

查看答案和解析>>

同步練習冊答案