Some hard working students always keep a torch in their dormitories _____ there is a power failure．

A．if B．unless

C．so that D．in case

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2016屆陜西咸陽武功縣高三摸底考試英語試卷（解析版） 題型：單項填空

– Fancy seeing you here at this time!

-- ____

A. It's a small world. B. That’s all right.

C. Oh, I never thought. D. Oh, haven’t you?

查看答案和解析>>

科目：高中英語 來源：2013-2014學(xué)年北京市西城區(qū)高三二模英語試卷（解析版） 題型：書面表達(dá)

假設(shè)你是紅星中學(xué)高三（1）班的學(xué)生李華，校報英文版正在開展“續(xù)寫雷鋒日記”活動。請根據(jù)以下四幅圖的先后順序，將你所做的一件好事以日記形式記述下來，向校報投稿。

注意：1．日記的開頭已為你寫好。[來%^~源&:中#教網(wǎng)]

2．詞數(shù)不少于60。

Saturday, May 3 Fine

This morning, ________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

查看答案和解析>>

科目：高中英語 來源：2016屆湖北松滋第三中學(xué)高二下學(xué)期6月月考英語試卷（解析版） 題型：閱讀理解

The dodo is among the most famous extinct creatures, and a poster child for human-caused extinction events. Despite its bad name, and the fact that the species was alive during recorded human history, little is actually known about how this animal lived, looked, and behaved. A new study of the only known complete skeleton(骨架) from a single bird takes advantage of modern 3-D laser scanning(掃描) technology to open a new window into the life of this famous extinct bird.

The study was presented at the 74th Annual Meeting of the Society of Vertebrate Paleontology in Estrel, Berlin. Leon Claessens, Associate Professor at the College of the Holy Cross, and lead researcher on the study said that, "the 3-D laser surface scans we made of the fragile dodo skeletons enable us to reconstruct how the dodo walked, moved and lived to a level of detail that has never been possible before. There are so many outstanding questions about the dodo bird that we can answer with this new knowledge."

A complete dodo skeleton, found by an amateur collector and barber, Etienne Thirioux, on the island of Mauritius between 1899 and 1917, has remained unstudied, even though it is the only complete dodo skeleton from a single individual bird known to exist. All other skeletons are incomplete combinations, meaning that they are gathered from more than one individual. In addition, Thirioux constructed a second, partially combined skeleton, which contains many bones that also belong to a single bird. "Being able to examine the skeleton of a single, individual dodo, which is not made up from as many individual birds as there are bones, as is the case in all those other combined skeletons, truly allows us to appreciate the way the dodo looked and see how tall or fat it really was," said Juilan Hume, of the Natural History Museum UK, a co-author on the study.

The scans were performed on site in Durban, South Africa, and allow examination of the biology of this mysterious extinct bird in detail for the first time. Using the newest digital tools and techniques, the scans provide an insight into how the flightless dodo may have developed its giant size, and how it walked and lived in its forest home. According to Kenneth Rijsdijk, a biologist from University of Amsterdam, “the skull of the dodo is so large and its mouth so strong that it is easy to understand that the earliest naturalists thought it was related to sharks and other birds of prey（猛禽）, rather than the pigeon family.”

1.The underlined phrase “a poster child” in Para. 1 is closest in meaning to “ ”.

A. a typical example

B. an endangered animal

C. a child who puts up posters on the board

D. a child posted in a newspaper as an advertisement

2.The researchers study the dodo skeleton to find out .

A. ways to save the dodo

B. the dodo’s living habits

C. the bird’s natural habitat

D. the cause of the dodo’s extinction

3.What is special about the dodo skeleton found by an amateur collector?

A. It is gathered from more than one individual.

B. It reminded unstudied between 1899 and 1917.

C. It is the only complete dodo skeleton from a single individual bird.

D. It can be examined with 3-D laser scanning technology.

4.What is the purpose of the author in writing this passage?

A. To call people’s attention to wildlife protection.

B. To criticize humans for the extinction events.

C. To introduce a new way of studying the dodo.

D. To give tips on how to study extinct creatures.

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年江蘇南京鹽城兩市高三一模考試英語試卷（解析版） 題型：單項填空

They eat only plant foods, and take care to ________ animal products from other areas of their lives．

A．contain B．maintain

C．exclude D．Include

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年北京市海淀區(qū)高三一模英語試卷（解析版） 題型：單項填空

______ she has earned her PhD, she wants to find a job with higher pay.

A．As if B．Now that

C．Even though D．In case

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年北京市豐臺區(qū)高三一�？荚囉⒄Z試卷（解析版） 題型：單項填空

With a little more care, you________the traffic' accident．It' s lucky that you just hurt your arm．

A．can avoid B．a(chǎn)rrived

C．had avoided D．could have avoided

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年北京市東城區(qū)高三下學(xué)期綜合練習(xí)一 英語試卷（解析版） 題型：閱讀理解

Shark on the bait （誘餌） !" shouted Andre Harman, pointing to a spot a few yards behind the outboard motors． His voice gave no indication of panic, but the crew suddenly became tense and fixed their eyes on the water． Slowly, smoothly, Andre drew in the bait．The shark followed． No one asked what kind of shark it was． Everything about it, from its color to its shape, tells that it was a great white shark．

Andre lifted the bait aboard． Placing himself between the two motors, he dropped his right hand into the water just as the great head reached the first motor． “My goodness Andre!” I said． His hand seized the big nose, moving it away from the tube of the motor, guiding the shark's head up as it rose out of the water． Andre's hand held the nose, touching it gently． No one spoke． No one breathed． The moment seemed endless． In fact, it lasted less than five seconds before Andre pulled his hand back．

Still nobody spoke． Then Andre smiled and said: "The first time was an accident． I was just trying to move the shark away from the motor． Sharks are attracted to motors by their electrical signals and have a habit of biting them to see if they are eatable． " Andre has worked with great white sharks for years． "My hand landed on its nose, and it sort of paused, so I kept it there, and when I did let go, the shark bit and bit as if it was searching for whatever it was that had attracted it．"

Nearly every encounter （遭遇） we had had with the great whites had been totally illogical． The more we learned, the more we realized how little was really known about them in the past years． Back then, it was generally accepted that great whites ate people by choice． Now we know that almost every attack on a human is an accident in which the shark mistakes a human for its normal food． Back then, we thought that once a great white smelt blood, it would lead to death． Now we know that nearly three-quarters of bite victims survive, perhaps because the shark recognizes that is has made a mistake and doesn't return for a second bite．

1.The author said, "My goodness! Andre ! " when ．

A．Andre was about to fall into the water

B．Andre was about to touch the shark

C．Andre was followed by the shark

D．Andre was bitten by the shark

2.What does the author think of the encounters with great whites?

A． Exciting． B． Educational．

C． Frightening D． Reasonable

3.Most bite victims survive in shark attacks because .

A． they are taught how to fight off sharks

B． sharks discover they are no threats

C． they manage to swim to safety

D． sharks stop attacking them

查看答案和解析>>

科目：高中英語 來源：2014-2015學(xué)年浙江省溫州市十校聯(lián)合體高三上期初聯(lián)考英語試卷（解析版） 題型：單項填空

Some parents are just too protective. They want to ______ their kids from every kind of danger, real or imagined.

A. prevent B. shelter

C. recover D. accompany

查看答案和解析>>

同步練習(xí)冊答案