题目内容

下面文章中有五处需要添加小标题。请从以下选项(A、B、C、D、E和F)中选出符合各段意思的小标题。选项中有一项是多余项。

A. Places to Stay B. Places to Visit C. Weather

D. Shopping E. History F. Restaurants

Savannah City Guide

1.

If you want to spend the night in Savannah, you have lots of place to choose from. You can stay at a big hotel a small inn, or a comfortable motel. Savannah's hotels, motels and inns are famous for their friendly service. Call one of these places to make your reservation.

2.

Savannah is well known for its wonderful restaurants Many restaurant serve local, seafood or old-fashioned Southern food. The following are sonic of the best restaurants in the area.

3.

If you like to shop, Savannah is the place for you! You'll find all kind of stores in Savannah. You can go shopping in small stores or big shopping malls. Are you looking for a special treasure or a great deal? You'll find it in Savannah.

4.

There are so many things to do and see in Savannah. The sightseeing is great. You can visit beautiful historic homes and museums. You can take a boat tour or visit Civil War forts. With all of Savannah's history, art, and beautiful buildings, be sure to take the time to enjoy all that Savannah has to offer!

5.

Savannah has lots of sunshine throughout the year. Summer are hot and humid. Winters are generally mild. Temperatures usually range between 30 degrees Fahrenheit (-1 degree Centigrade) and 90 degrees Fahrenheit (33 degrees Centigrade).

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Long ago,as people got older,there was something wrong with their teeth and it would be very painful. To avoid a toothache,they had their teeth pulled out. Later people learned that cleaning their teeth was important,but they didn’t have toothpaste (牙膏) at that time. They used lemon juice,salt or other things to clean their teeth.

It was only about 100 years ago that someone finally created a mint (薄荷) cream to clean teeth. Not long after that,the toothpaste tube (管子) was invented,so people could squeeze (挤出) the toothpaste right onto the toothbrush! Tooth brushing became popular during the World War I. The U. S. Army gave brushes and toothpaste to all the soldiers,and they learned to brush teeth twice a day. Back then,toothpaste tubes were made of metal;today they’ re made of soft plastic and are much easier to use!

Today there are plenty of toothpaste choices:lots of colors and flavors (口味) to choose from,and some kinds of toothpaste are made just for children. When you’re choosing a kind of toothpaste,make sure it has fluoride (氟化物). Fluoride makes your teeth strong and healthy. When you brush,you don’t need a lot of toothpaste:just squeeze out a bit.

1.People used to to avoid a toothache.

A.pull out their teeth B.take some medicine

C.drink more water D.eat more vegetables

2.What was NOT used to brush teeth in the past according to the passage?

A.Salt. B.Lemon juice. C.Mint cream. D.Tea.

3.What can we learn from the passage?

A.There is no special toothpaste for children.

B.We should choose toothpaste with fluoride.

C.Toothpaste can’t be made into different flavors.

D.Squeeze out as much as toothpaste when you brush teeth.

When a leafy plant is under attack, it doesn’t sit quietly. Back in 1983, two scientists, Jack Schultz and Ian Baldwin, reported that young maple trees getting bitten by insects send out a special smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be a warning. What the plants pump through the air is a mixture of chemicals known as volatile organic compounds(VOCs).

Scientists have found that all kinds of plants give out VOCs when being attacked. It’s a plant’s way of crying out. But is anyone listening? Obviously. Because we can watch the neighbors’ react.

Some plants pump out smelly chemicals to keep insects away. But others do double duty. They pump out perfumes to attract different insects who are their natural enemies. Once the insects arrive, the tables are turned. The attacker who was lunching now becomes lunch.

In study after study, it appears that these chemical conversations help the neighbors. The damage is usually more serious on the first plant, but the neighbors stay safer because they heard the warning and knew what to do.

Does this mean that plants talk to each other? Scientists don’t know. Maybe the first plant just made a cry of pain or was sending a message to its own branches, and so, in fact, was talking to itself. Perhaps the neighbors just happened to hear the cry by accident and so wrong information was exchanged.

Charles Darwin, over 150 years ago, imagined a world far busier, noisier and more intimate than the world we can see and hear, our senses are weak. There’s a whole lot going on.

1.What does a plant do when it is under attack?

A.It makes noises. B.It gets help from other plants.

C.It stands quietly. D.It sends out certain chemicals.

2.What does “the tables are turned” mean in Paragraph 3?

A.The attackers are attacked. B.The insects gather under the table.

C.The plants get ready to fight back. D.The perfumes attract natural enemies.

3.Scientists find from their studies that plants can__________.

A.talk to one another B.predict natural disasters

C.protect themselves against insects D.help their neighbors when necessary

4.What can we learn from the last paragraph?

A.The world is changing faster than ever. B.People have stronger senses than before.

C.The world is more colorful than it seems. D.People in Darwin’s time were full of imagination.

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