Jim had a lot of homework to do, but he ______ to finish it before bedtime.

A. contributed B. managed

C. succeeded D. arranged

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：河南省百校聯(lián)盟2017屆高三3月聯(lián)考英語試卷 題型：閱讀理解

Ants are troublesome, best known for itchy bites and ruining picnics. But, a new species of crazy ant is taking over Texas. In some ways they appear to be worse than fire ants and there's no good way to stop them* These ants move fast and are plentiful in some areas.

The crazy ants first sprang in Pearland in 2002 and have been becoming more and more of a problem ever since.“An invasion of these can be so extreme that it's hard to call it just a nuisance," University of Texas entomologist Edward LeBrun told The Austin American-tatesman. “The ants have been known to crawl into and ruin televisions, appliances and other electronic devices. No one is entirely sure why," He said.

David Oi , a research entomologist at the Department of Agriculture, told The New York Times in 2013, the strange idea that the ants are actually attracted to the electricity itself can't be ruled out.

The crazy ants or Raspberry ants-yep, that's actually what they are called-are found in 23 Texas counties. The ants have very little venom（毒液）, but do cause a slight sting when they bite. Mostly, though, they're a hazard to electrical equipment.

They are a relatively new species in the region and little is known about how to control or kill the population. And, unfortunately, there doesn't seem to be much that can be done about them right now. So, for the moment, the best advice is not to stay close to ant piles and groups. and hope that none make it inside to crawl around the electronics.

1.What do the ants do in Texas?

A. Bite some people. B. Damage local crops.

C. Destroy appliances. D. Pollute environment.

2.The underlined word "nuisance" in Paragraph 2 is closest in meaning to " ”.

A. story B. problem

C. visit D. failure

3.When meeting with ant piles, we'd better .

A. kill them all B. control them

C. drive them away D. stay away from them

4.What can we know from the text ?

A. The crazy ants first. appeared in Texas in 2013.

B. The crazy ants cause huge loss to the people in Texas.

C. The government is taking measures to deal with the ant.

D. David Oi is sure why the ants ruin electronic devices.

查看答案和解析>>

科目：高中英語 來源：江蘇省如皋市2016-2017學(xué)年高二 選修七 Unit 1 Living with technology 課時(shí)練習(xí) 題型：單項(xiàng)填空

Suffering from a mysterious disease for long, the patient was advised to walk along the seaside in the sun to 　　　　his health.

A. take up B. pick up

C. bring up D. make up

查看答案和解析>>

科目：高中英語 來源：安徽省“皖南五十�！�2016-2017學(xué)年高一下學(xué)期末聯(lián)考英語試卷 題型：閱讀理解

It may seem like a moment in a science fiction movie. In a fierce battle, a creature loses an arm but, then, grows another one to take its place.

However, this is not science fiction. It is scientific fact. Some fish and amphibians, such as salamanders, can regrow lost limbs and organs.

As mammals evolved they lost the ability to regrow, or regenerate, parts of their body. However, experiments show that it may be possible to regain that ability.

Tropical freshwater zebrafish are popular pets. They are also popular as lab animals. Their embryos(胚胎) are clear, or translucent. They can regrow damaged fins, skin and hearts. Zebrafish are also genetically（基因地） similar to humans.

In 2013, the website Sci-News reported that researchers had found that 70 per cent of “protein-coding human genes” are related to genes found in the zebrafish. The report also said that researchers at the Wellcome Trust Sanger Institute in Britain also found that 84 per cent of genes known to be connected to human disease have a zebrafish counterpart.

Scientist Wang Yadong is one of the Pittsburg researchers. He and his team are studying the ability of zebrafish to regenerate limbs and organs. Wang says you can cut away about 20 per cent of the zebrafish heart and it will regenerate. He add that same process may be able to help humans.

Scientists injected（注射） an “extracellular matrix,” or ECM, from the heart of a zebrafish into a severely damaged mouse heart. They found that the heart muscle regrew in days. They found something else. The healing was even faster when the ECM was taken from zebrafish that was itself in the process of re-growing damaged tissue.

1.The main reason why the zebrafish were chosen as lab animals is that _____________ .

A. they are popular pets

B. their bodies are clear to study

C. they are genetically similar to humans

D. they are easy to find for the researchers

2.What does the underlined word “counterpart” in Paragraph 5 probably mean?

A. A similar thing.

B. A different fish.

C. A human being.

D. A little mouse.

3.After injecting ECM from a zebrafish into the damaged mouse heart, what did scientists find?

A. The zebrafish died quickly.

B. The mouse heart regrew in days.

C. The zebrafish heart regrew quickly.

D. The mouse healed more slowly than normal.

4.Where is the most probably taken from?

A. A science fiction.

B. A guide book.

C. A fashion magazine.

D. A science report.

查看答案和解析>>

科目：高中英語 來源：內(nèi)蒙古2016-2017學(xué)年高一下學(xué)期期中考試英語試卷 題型：七選五

1. . One of the best things you can possibly do is to start you own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.

The first thing you need to come up with is an idea for your club. 2.. Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.

Next you need some friends to be in your club with you. 3.. All you need is three or four other people who are interested in the same thing as you.

4. .You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.

At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!

Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 5. . Why not leave some space for a photo of yourself? That will make the membership card really look like it.

So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!

A. That’s easy.

B. Enjoy your own club!

C. Invite a designer to join you.

D .What are you interest in?

E. Some vacation is just around the corner.(即將來臨)

F. Then you need to pick a name for your club.

G. Use a bright thick pen to make a special design.

查看答案和解析>>

科目：高中英語 來源：內(nèi)蒙古2016-2017學(xué)年高一下學(xué)期期中考試英語試卷 題型：單項(xiàng)填空

He found his son _______ by letters and papers and _______ very worried.

A. surrounding, looked B. surrounded, looked

C. surrounded, looking D. surrounding, looking

查看答案和解析>>

科目：高中英語 來源：內(nèi)蒙古2016-2017學(xué)年高一下學(xué)期期中考試英語試卷 題型：單項(xiàng)填空

Once you make a promise, you should ____________.

A. keep your word B. break your word

C. keep your words D. break your words[

查看答案和解析>>

科目：高中英語 來源：河南省新鄉(xiāng)市2016-2017學(xué)年高一下學(xué)期期末考試英語試卷 題型：閱讀理解

If you have a cat, you already know that a cat isn’t a dog that doesn’t have to be walked. If you’re about to bring a cat into your family, you need to understand that basic fact. The common wisdom is that dogs are friendlier than casts.

In recent years, scientists who have done DNA studies have offered a better way to understand cats. Unlike other animals that people feed, cats domesticated themselves, and, in a way, trained humans. Cats decided to live close to humans because doing so benefited the casts themselves.

Studies show that cats have lived with humans for about 12,000 years, since people first settled down and started farming. When people started storing grain, mice arrived and started eating the grain. Clever cats figured out that mice settlements where people stored grain were easy for hunting, so they started hanging around. Cats did what they needed to do to get the people to let them stay, but they kept up their independence. Over time, cats allowed humans to get a bit closer to them. Later, the farmers did befriend the cats. Certainly, it didn’t do them any harm because they could see the cats were really helping them out by eating mice.

Today, about a third of American families have cats. In most of those homes, the cats are still more interested in pleasing themselves than in pleasing their human families. A dog may do anything it can to make you happy, but kitty will teach you to make kitty happy.

1.Compared with dogs, cats are______.

A. colder B. friendlier

C. more warm-hearted D. more frightening

2.According to the text, why do cats decide to stay close to humans?

A. To be useful to themselves B. To protect grain from mice

C. To rely on humans for food D. To keep up their independence

3.What may be the best title for the text?

A. A common point between dogs and cats

B. The reasons why people like dogs

C. A disadvantage of raising cats

D. The basic fact about cats.

查看答案和解析>>

科目：高中英語 來源：山東省臨沂市2016-2017學(xué)年高二下學(xué)期期末考試英語試卷 題型：單詞拼寫

1.When Bonnie Rivers passed her exams, everyone c____________ her and wished her all the best for her future.

2.I am happy to have found many things I can do, like writing and computer programming. My ambition is to work for a f________ that develops computer software when I grow up.

3.We have found human and animal bones in those caves higher up the hills as well as tools and other objects. So we think it is reasonable to a___________ they lived in these caves, regardless of the cold.

4.Pressed by my friends and relations, I decided to s__________ the opportunity to get recognition for my successful idea by sending my invention to the patent office.

5.However, when she first saw the robot, she felt _____(驚恐), which seemed more like a human than a machine.

6.Also, when I miss my family, it’s a great comfort to have a ________(替代)family to be with.

7.____________ __________ __________ (不久前的一天)I was showing the boys the weekly chemistry when, before I knew it, the mixture was bubbling everywhere.

8.I am surprised he is so strongly ___________ ___________ ___________(支持)smoking because he is usually very reasonable about health issues.

9.---Hello, Serena. I was expecting you to call me back yesterday.

---I’m sorry. I tried but your phone _______ _________ ___________ _________(出故障)and I couldn’t get through.

10.It suddenly ______ __________ __________ ________(我想到)we could go to the customs office for help.

查看答案和解析>>

同步練習(xí)冊答案