【題目】There is a lot of poisonous gases in the hall. If ____in, they can result in illness and even death.

A.breathedB.breathingC.to be breathedD.breathe

【答案】A

【解析】

考查狀語從句的省略形式。句意：大廳里有許多有毒氣體。如果被呼吸進人體，它們會導(dǎo)致疾病甚至死亡。此處是if條件狀語從句的省略形式，主句的主語they指代 poisonous gases ，和breathe之間為邏輯上的動賓關(guān)系, 不省略的句子為if they are breathed in，省略they are，因此用過去分詞。故選A項。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】閱讀下面材料，在空白處填入適當(dāng)?shù)膬?nèi)容(1個單詞)或括號內(nèi)單詞的正確形式(不超過3個單詞)。

A teahouse is a special house which primarily serves tea and other light refreshments(茶點). Its function varies widely【1】(depend)on the culture. In China, a teahouse is a place 【2】people gather to enjoy tea, chat and socialize. It【3】(consider) as a symbol of Chinese tea culture and people’s leisure lives.

Chinese teahouses enjoy a long-standing history. They developed from tea 【4】(stand) in the Western JIN Dynasty, took shape in the Tang Dynasty, developed 【5】(gradual) in the Song, Yuan, Ming and Qing Dynasties and became booming in modern times.

In the Song Dynasty, teahouses spread all over the cities and villages, at a rate comparable with that of restaurants. The owners preferred to decorate their teahouses 【6】paintings of celebrities or rare and precious plants 【7】(attract) customers. In the Ming and Qing Dynasties, the number of teahouses went beyond that of restaurants, gaining much 【8】 (wide) popularity and becoming more famous. Later, the acculturation(文化植入)of western culture forced traditional Chinese teahouses to take on【9】 new look.

Since reform and opening-up, with the rapid development of the economy and evident improvement of people’s living standards, teahouses【10】(flower) in China.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】用下面所給漢意或單詞的正確形式填空，一空一詞。

【1】They finally made their _________ (appear) at half past eleven.

【2】________ (其實), on second thoughts, I don’t think I want to go out tonight.

【3】Children under 14 must be ________ (accompany)by an adult.

【4】He made us a ________ (合理的) offer for the car.

【5】________ (判斷) from his accent, he must be from Sichuan.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 My name is Miranda Gibson. I have been at the top of a tree for five months now. Some people might wonder _______ on earth I would choose to do that.

I have walked through this forest many times. On 12 December 2011, _______rolled into the forest and the destruction(摧毀) began. I couldn’t _______ the thought that these forests would be _______ forever. So, on 14 December 2011, I packed up my life, _______ of my job plans, and climbed 60 meters to the top of this tree. I have been here ever since.

Life in the tree tops can be _______ at times. I have times when I feel frustrated(沮喪) and wish I could _______, to anywhere, just have a _______ of scenery for a minute！There are times too, when I feel terribly _______. I miss my friends and family. ________ these times, I find myself loving the ________.

Living on the tree has been inspiring. I am willing to ________ up here for as long as it takes, ________ I honestly hope it won’t be too ________ before I can put my feet on the ground below and stand in a forest that will never be ________.

【1】A.whyB.whenC.howD.where

【2】A.waterB.animalsC.machineryD.tourists

【3】A.bearB.helpC.keepD.spare

【4】A.soldB.stolenC.protectedD.lost

【5】A.grew outB.fell shortC.ran outD.let go

【6】A.refreshingB.riskyC.challengingD.rewarding

【7】A.get upB.get awayC.give inD.give up

【8】A.changeB.lookC.searchD.touch

【9】A.confusedB.nervousC.sorryD.lonely

【10】A.BeyondB.WithoutC.DespiteD.Unlike

【11】A.heightB.experienceC.backgroundD.position

【12】A.returnB.stopC.stayD.hide

【13】A.butB.thoughC.becauseD.so

【14】A.soonB.longC.nearD.bad

【15】A.movedB.loggedC.burnedD.missed

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】______the phone call, the construction site is crowded with workers full of joy and excitement.

A.On receivingB.As soon as receivingC.The Moment he receivedD.Receiving

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 If you were on the street in Mexico today you might think you were in an operating room, surrounded by doctors. You could see many concerned people with masks (口罩) trying their best to stop the swine flu (豬流感). And the masks aren’t only being used in Mexico. A friend of mine traveling from New York City to Florida was given a mask and a pair of gloves just after he reached the airport. And another friend went to get a haircut only to be faced with a hairdresser wearing a mask!

But do the masks really work? Is covering your nose and mouth the key to stopping the swine flu? To find out the truth, ABC’s reporter Sharyn Alfonsi talked with germ (細菌) expert Dr. Elaine Larsen. It turns out that when you sneeze (打噴嚏) the air coming out of your mouth at a speed of one hundred miles per hour carries germs which can travel anywhere around you and make people around you infected (被感染).

However, whether you become infected actually depends on the weather. As Sharyn reported, when you sneeze, the germs leave your body in small drops of water coming out of your mouth. If the weather is wet, the wet air will make the small drops bigger and heavier and they drop down towards our feet. If this happens, we won’t become infected. But if the air is dry, those small drops can float higher up, making it possible for them to touch someone else’s nose, mouth or their mask.

Larsen says the masks can stop the germs well but after a few hours, they start to get wet, holding a lot of germs they come across and causing you to breathe them in. The masks do work, but the key to stopping the germs is changing your masks often.

【1】According to Para.1, in Mexico you can see that ____.

A.the patients are treated in the open air

B.some doctors work in the street

C.people speak little to each other in the street

D.many people wear masks in the street

【2】According to the passage a patient spreads germs mainly through ____.

A.breathingB.Speaking

C.touching othersD.sneezing

【3】We learn from the passage that on a wet day ____.

A.sick people will be infectedB.germs can spread very far

C.germs spread very quicklyD.few people will be infected

【4】If you keep wearing a mask for a long time, ____.

A.the mask will be old and worn outB.you’ll love the feeling of wearing it

C.germs will be kept away from youD.it will be easy for you to be infected

【5】What should we pay attention to when wearing masks?

A.Keeping the masks dry.B.Changing the masks often.

C.Choosing very thick masks.D.Wearing big masks.

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， 你正在為高考緊張復(fù)習(xí)， 但最近你遇到了一些問題導(dǎo)致無法集中精力學(xué)習(xí)。于是你給你校的外籍心理老師Kate寫一封求助信尋求幫助。 要點如下：

1. 自我介紹。

2. 求助內(nèi)容：作業(yè)多， 沒有時間運動；壓力大， 難以入睡……

3. 希望得到Kate的幫助。

注意：1.詞數(shù)100左右。

2. 可以適當(dāng)增加細節(jié)，以使行文連貫。

Dear Kate,

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Li Hua

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】 Earthquakes strike without warning and are among the most destructive natural disasters. Keeping calm and proper reaction can sometimes save your life. To ride out an earthquake, remember the phrase “drop, cover, and hold on.” 【1】

1. Move away from buildings, street lights, power lines, and bridges.

【2】 As soon as the ground begins shaking, try to get as far away as possible from any nearby structures. Do not seek shelter under a bridge or overpass.

2. Crouch down low in a wide open area until the shaking stops.

Once you've made your way away from nearby structures, get on your hands and knees and cover your head. See if there are any objects nearby to use as a shield (遮蔽物）, such as a trash can lid. 【3】

3. 【4】

As you go out after the earthquake, be careful of broken glass, rubble, downed power lines, fallen trees, and any other potential danger. Check yourself and anyone nearby for injuries. If necessary,perform first aid and call emergency services.

4. Get to higher ground if you're on the shore or near a dam.

Earth quakes can cause tsunamis, so put distance between yourself and the coast. If a shaking lasts more than 20 seconds, 【5】 Get to ground that's at least 100 ft (30 m)above sea level or 2 miles (3.2 km)from the shore.

A.Drop to your hands and knees under a table or desk.

B.Watch out for danger as you observe your surroundings.

C.If possible, grab a pillow, sofa cushion, or another object to cover your face and head.

D.Here are four tips helping you survive an earthquake if you are outdoors.

E.Don't wait for an alarm or warning to escape.

F.The most dangerous locations during an earthquake are areas immediately around buildings.

G.If none are available, cover your head and neck with your hands and arms.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】聽下面一段獨白，回答以下小題。

【1】How old was Mr Green?

A. 28. B. 48. C. 82.

【2】How did the robber flee?

A. By car. B. By bike. C. By taxi.

【3】How did the police recognize the robber?

A. By the picture drawn by Mr Green.

B. By the clothes he was wearing.

C. By his voice.

查看答案和解析>>

同步練習(xí)冊答案