题目内容

Today, many people use plants from other places to design their yards. Well, do they have any influence on animals living nearby? As we know, plants supply food for things like insects and plant-eating animals. In turn, birds and meat-eating animals feed on these insects and plant-eating animals. It is easy to see how important plants are.

Although foreign plants may look beautiful, they can cause problems when there are too many of them. I live in Virginia, USA, and sometimes see a plant—commonly known as Kudzu—that seems to cover everything in the area, even climbing over whole trees and houses.

Kudzu is an unbelievable plant since it grows very fast. It was first brought to the United States from south-east Asia around the 1870’s as a crop that farmers could grow. However, Kudzu quickly came to be considered harmful throughout the southern United States.

Since Kudzu grows fast in many different environments, it can completely cover areas of land quickly. The plant is also not eaten by any insects or birds in the United States so it can grow unchecked. Kudzu can cover trees, bushes, and even houses. It costs the United States 500 million dollars a year to just keep Kudzu from growing too fast. The plant is a perfect example of what scientists call an invasive (侵略性的) species, which grows more quickly than other native plants.

All foreign plants have the possibility to spread quickly. Not only are they costly, but planting them in gardens actually takes away food from insects. If everyone filled their garden with plants native to where they live, many lovely butterflies and other native creatures would be attracted to their backyards! So, take a look out of your window — how does your garden grow?

1.We can learn from the text that Kudzu in Virginia ________.

A. is very popular

B. is difficult to grow

C. can cause big trouble

D. can make air cleaner

2.Which of the following is TRUE of Kudzu?

A. It served as food at first in America.

B. It came to America in the early 19th century.

C. It grows fast in Asia, but slowly in America.

D. It is often eaten by insects or birds in America.

3.How does the author sound when telling of these foreign plants?

A. Sad.B. Worried.C. Proud.D. Excited.

4.What does the author mainly discuss in the text?

A. Everyone should learn to love nature.

B. It is a hard job to grow plants in yards.

C. Gardening has become a serious hobby.

D. It is important to say no to foreign plants.

练习册系列答案
相关题目

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余项。

Four benefits of writing by hand

Today is National Handwriting Day! Although we don’t write like we used to, here are four ways handwriting is still helpful.

It’s better for learning.

1. That’s because putting ink to paper stimulates (刺激) the brain. One study from 2010 found that the brain areas related to learning “lit up” much more when kids were asked to write words like “spaceship” by hand versus just studying the word closely.

2.

Many famous authors prefer writing by hand to the use of a typewriter or computer. Writer Susan Sontag once said that she penned her first drafts (草稿) before typing them up for editing later. She said, “ 3. ” A 2009 study seems to support Sontag’s preference for writing by hand: Elementary school students who wrote essays with a pen not only wrote more than their keyboard-tapping friends, but they also wrote faster and in more complete sentences.

It will prevent you from being distracted (分心).

The computer in front of you is really a distraction. 4. In 2012, scientists even suggested that taking five-minute breaks to browse Tumblr or BuzzFeed could make you a more productive worker. However, when it’s time to work on that essay, have only a pen and paper in front of you.

It keeps your brain sharp as you get older.

5. According to The Wall Street Journal, some physicians say that the act of writing is good exercise for those who want to keep their minds sharp as they age.

A. It makes you a better writer.

B. Writing is good for your brain.

C. Of course, the Internet isn’t all bad.

D. I like the slowness of writing by hand.

E. Try writing by hand at least 20 minutes each day.

F. Many writers have a preference for writing by hand.

G. One of the most effective ways to study is to rewrite your notes by hand.

Orville Wright was born on August 19, 1871 in Dayton, Ohio, USA and died on January 30, 1948. Together with his brother, Wilbur, he was the first airplane builder. The brothers created the first controlled, powered and heavier-than-air human flight.

His parents were Milton Wright and Susan Catherine Koerner and besides the two famous brothers they had five children. One day after a trip his father brought as a gift a small helicopter. The kids loved it and as they played daily with it after a while it broke. The brothers managed to create a new one. Wright even let go his plans of attending Yale. He spent his time helping his ill mother and reading in his father’s library.

In 1884 the family decided to move to Dayton and they remained there until the 1870’s. A printing press was built by the two and Wilbur was an editor. In 1892 they started being fascinated by the aeronautical (航空的) events of that time. Then they started to create an airplane and Wilbur was considered the head of the team. They were the inventors of “three axis-control”, which permitted the pilot to steer the aircraft’s balance.

In 1900 they had their first attempts to make a functional glider(滑翔机)— of course it didn’t have a pilot. After three years they thought of introducing an engine to the glider. At first, their patent(专利) application was refused in 1903, but after one year it was accepted.

Orville’s first flight lasted 12 seconds and had 36.5 meters. He was responsible with the public shows near Washington in the United States. On September 9, 1908 his flight was 62 minutes and 15 seconds long and the success was huge.

1.What might make Wright brothers interested in the plane?

A. The pleasant trip.B. Catherine’s education.

C. The political events.D. Their father’s gift.

2.Wright didn’t go to Yale probably because ________.

A. he had to create a plane

B. he didn’t have enough money

C. he would like to learn by himself

D. his mother asked him to stay at home

3.The underlined word “steer” (in Paragraph 3) probably means ________.

A. keepB. driveC. learnD. enjoy

4.This passage tells us about ________.

A. the plane’s history B. Milton and his children

C. Orville Wright’s life D. the development of science

阅读下面短文,然后用60个单词左右概括短文的要点。

Getting rid of dirt, in the opinion of most people, is a good thing. However, there is nothing fixed about attitudes to dirt.

In the early 16th century, people thought that dirt on the skin was a means to block out disease, as medical opinion had it that washing off dirt with hot water could open up the skin and let ills in. A particular danger was thought to lie in public baths. By 1538, the French king had closed the bath houses in his kingdom. So did the king of England in 1546. Thus began a long time when the rich and the poor in Europe lived with dirt in a friendly way. Henry IV, King of France, was famously dirty. Upon learning that a nobleman had taken a bath, the king ordered that, to avoid the attack of disease, the nobleman should not go out.

Though the belief in the advantage of dirt was long-lived, dirt has no longer been regarded as a nice neighbor ever since the 18th century. Scientifically speaking, cleaning away dirt is good to health. Clean water supply and hand washing are practical means of preventing disease. Yet, it seems that standards of cleanliness have moved beyond science since World War Ⅱ. Advertisements repeatedly sell the idea; clothes need to be whiter than white, cloths ever softer, surfaces to shine. Has the hate for dirt, however, gone too far?

Attitudes to dirt still differ hugely nowadays. Many first-time parents nervously try to warn their children off touching dirt, which might be responsible for the spread of disease. On the contrary, Mary Ruebush, an American immunologist (免疫学家), encourages children to play in the dirt to build up a strong immune system. And the latter position is gaining some reason.

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

I know what you’re thinking: pizza?For breakfast? But the truth is that you can have last night’s leftovers in the a.m. if you want to.

I know lots of women who skip breakfast (不吃早饭), and they have a ton of different excuses for doing it. Some say they don’t have time, others think they’re “saying” calories ,still others just don’t like breakfast food .

But the bottom line is that eating in the morning is very important when you’re trying to lose weight . “Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking, R.D,who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece.

Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.

So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers – it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow.” I put away the leftovers instead of eating more that night. Try it … you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.

1.The word “leftovers” in paragraph I probably means ______.

A. food remaining after a meal B. things left undone

C. meals made of vegetables D. pizza topped with fruit

2.What can we infer from the text?

A. Working women usually have breakfast in a hurry.

B. Many people have wrong ideas about breakfast.

C. There are some easy ways of cooking a meal.

D. Eating vegetables helps save energy.

3.According to the last paragraph, it is important to _______.

A. eat something for breakfast

B. be careful about what you eat

C. heat up food before eating it

D. eat calorie-controlled food

4.The text is written mainly for those _______.

A. who go to work early B. who want to lose weight

C. who stay up late D. who eat before sleep

Last Christmas, when I was in the fourth grade and my brother was in the first grade, our school held its yearly Holiday Shop. At the Holiday Shop students can buy things like necklaces, key chains, and other small items for their friends and family as Christmas gifts. Since my brother really wanted to take part, my mom gave him two dollars to buy his Christmas gifts.

My mom didn’t know that he had picked out a special necklace for her. When he got home from the Holiday Shop that day, he couldn’t wait to show it to me. He pulled out a little green box and opened it. Inside was a gold chain with a little red flower and a man-made diamond next to gold letters that spelled out,“Grandmother”.

“Wow,” I said.“It’s beautiful.” Since my brother was in the first grade and was just learning to read, he didn’t realize that the necklace said “Grandmother” instead of “Mother”. I knew that on Christmas morning, when he found out he had bought the wrong necklace, he would be very unhappy, so I said nothing more about it. My brother ran and put the necklace under his bed to hide it from Mom until Christmas morning.

When he wasn’t looking, I took the necklace and put it in my backpack. The next day I took it back to school and asked the woman who ran the Holiday Shop if I could change it for the “Mother” necklace. She said yes. When I got home that day, I put the necklace under my brother’s bed.

When my mom opened it up on Christmas morning, my brother was so exalted! My mom’s eyes were filled with joy. She knew what had happened, which made the necklace even more special to her!

My brother still does not know what I did, but I knew I had done the right thing.

1.What do we know about the gift the author’s brother bought

A. The author didn’t like it.

B. It wasn’t worth the price.

C. It was designed for Mother.

D. The author changed it for another one.

2.The underlined word “exalted” is the closest in meaning to “______”.

A. amazed B. disappointed

C. excited D. worried

3.It can be inferred from the text that _____.

A. the author’s mother didn’t know what she had done

B. the author helped her brother secretly

C. the author’s grandma also received a gift

D. the author paid for the right necklace

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网