题目内容

Great white sharks! Just hearing that name makes many people’s hair stand on end. In reality, these big fish have more to fear from us than we do from them. For many years, people killed countless great white sharks in the waters around the United States.

But thanks to conservation (protection) efforts, great whites are making a comeback in the U.S. Two recent studies show that the population of these sharks is rising along the east and west coast.

Why is the growing population of a killer fish something to celebrate? “When you fish too many of them, you start to lose balance in the environment,” says shark researcher Tobey Curtis. As the biggest killer, sharks help keep the populations of fish, seals, and other creatures they eat from growing too large.

In spite of their importance, great white sharks had long been hunted for their meat and their fins (鳍). Then, in 1997, the U.S. government passed a law that didn’t allow the hunting of great whites. Afterwards, the numbers of these sharks in the U.S. waters started to increase.

The law wasn’t the only thing that has helped great whites. Conservationists have also played a part in the sharks’ comeback. The research group OCEARCH is using a method called tagging (加标签) to help change people’s attitudes about great white. They let the public follow each shark as it travels the world’s oceans. OCEARCH also gives each tagged shark a name to help people form a closer connection with the big fish.

The group’s most well-known shark is named Katharine. She was tagged last year near Cape Cod, Massachusetts. Since then, thousands of people have tracked Katharine’s movements on Twitter and the OCEARCH website.

This helps people see sharks in a new way. Chris Fischer, the founder of OCEARCH believes learning to appreciate great whites will encourage people to do more to protect them.

1.The underlined part “makes many people’s hair stand on end” in Paragraph 1 can best be replaced by_____.

A. worries many people B. bores many people

C. interests many people D. frightens many people

2.The main purpose of the passage is to _____.

A. introduce an experiment result

B. inform us that great whites are making a comeback

C. make an advertisement for OCEARCH

D. remind us that big killers are dying out

3.The law passed in 1997 _____.

A. seemed very helpful B. helped the sharks by tagging them

C. let scientists down D. made people like great whites

4.Katharine’s example is used to show that _____.

A. great whites are in fact lovely animals

B. the OCEARCH website has a lot of visitors

C. OCEARCH help people get closer to great whites

D. the number of great whites is growing quickly

练习册系列答案
相关题目

If your preschoolers turn up their noses at carrots or celery, a small reward like a sticker(贴画) for taking even a taste may help get them to eat previously disliked foods, a UK study said.

Though it might seem obvious that a reward could encourage young children to eat their vegetables, the idea is actually controversial, researchers wrote in the American Journal of Clinical Nutrition. That’s because some studies have shown that rewards can backfire and cause children to lose interest in foods they already liked, said Jane Wardle, a researcher at University College London who worked on the study. Verbal praise, such as “Brilliant! You’re a great vegetable taster”, did not work as well.

The study found that when parents gave their small children a sticker each time they took a “tiny taste” of a disliked vegetable, it gradually changed their attitudes. The children were also willing to eat more of the vegetables—either carrots, celery, cucumber, red pepper, cabbage or sugar snap peas—in laboratory taste tests, the study said.

Researchers randomly assigned (分派) 173 families to one of these groups. In one, parents used stickers to reward their children each time they took a tiny sample of a disliked vegetable. A second group of parents used verbal praise. The third group, where Parents used no special vegetable-promoting methods, served as a “control”.

Parents in the reward groups offered their children a taste of the “target” vegetable every day for 12 days. Soon after, children in the sticker group were giving higher ratings to the vegetables—and were willing to eat more in the research lab, going from an average of 5 grams at the start to about 10 grams after the 12-day experience. The turnaround(转机) also seemed to last, with preschoolers in the sticker group still willing to eat more of the once-disliked vegetable three months later.

Why didn’t the verbal praise work? Wardle said the parents’ words may have seemed “insincere” to their children.

1.What is the purpose of writing the passage?

A. To show the procedure of an experiment on children’s diet

B. To introduce a practical method of making children eat vegetables

C. To explain why children hate to eat vegetables

D. To present a proper way of verbal praise to parents

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

A. Shoot from behind the back

B. Make a fire in the backyard

C. Produce an unexpected result

D. Achieve what was planned

3.Which of the following statements is true according to the passage?

A. Most children are born to dislike carrots or celery.

B. Children in the sticker group will never lose interest in eating vegetables.

C. Oral praise works quite well in encouraging children to eat vegetables.

D. It remains a question whether rewarding is a good way to get children to eat vegetables.

4.What can we learn from the last paragraph?

A. Children like rewards, not verbal praise.

B. Parents should give up verbal praise.

C. Children are difficult to inspire.

D. Parents should praise their children in a sincere tone.

Five Ways to Improve Reading Comprehension

Help your child keep what he reads—a crucial skill, especially as he gets older and needs to gain important information from textbooks.

Have him read aloud. This forces him to go slower, which gives him more time to process what he reads. 1. Provide the right kinds of books. Make sure your child gets lots of practice reading books that aren’t too hard. 2. Stopping any more often than that to figure out a word makes it tough for him to focus on the overall meaning of the story.

3. To gain meaning from text, your child needs to read quickly and smoothly—a skill known as fluency. Rereading familiar, simple books gives your child practice at decoding words quickly, so he’ll become more fluent.

Supplement class reading. If his class is studying a particular theme, look for easy-to-read books or magazines on the topic. 4.

Talk about what he’s reading. 5. Ask questions before, during, and after a reading session.

For example:

•Before: “What interests you in this book? What doesn’t?”

•During: “What’s going on in the book? Is it turning out the way you thought it would?”

•After: “Can you summarize the book? What did you like about it?”

A. He should recognize at least 90 percent of the words without any help.

B. Select books that are appealing to your child but not too challenging.

C. Some prior knowledge will help him get better prepared and make his way through tougher classroom texts.

D. This “verbal processing” helps him remember and think through the themes of the book.

E. Plus, he’s not only seeing the words, he’s hearing them, too.

F. Have him reread to build fluency.

G. Increase the speed of reading.

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