Listening
2A Ocean Giants Answer Key
Before You Listen A. a. 2 b. 1 c. 3
B. Answers will vary. Humpback whales are intelligent, lighthearted, and active at the surface of the water, and swim close to land. Listening Comprehension A. 1. b 2. d 3. d 4. b 5. b B. 1. b 2. c 3. e 4. d 5. a After You Listen
A. 1. variety of singing whale 2. marine biologist 3. probably the most complex in the animal kingdom 4. as fast as 48 kilometers per hour 5. hunted them until they nearly disappeared last century 6. which don't hurt the whales 7. valuable information about the ways blue whales swim, eat, and sing B. 1. constantly 2. alarmed 3. harmed 4. awareness 5. unknown Script
Song of the Humpback
Herman Melville, the writer of the famous whale story Moby Dick, wrote that humpback whales were \swim in ocean areas close to land and are active at the surface, often jumping out of the water and coming down with a great splash. They are intelligent animals and can be seen working together as they hunt schools of small fish. And, if you listen closely, you might even hear one singing.
Recording Gentle Giants
Marine biologist Jim Darling has studied the songs of humpback whales for 25 years. While recording whale songs on a boat near Hawaii, he invited author Douglas Chadwick to experience diving with a humpback. In the water, the way Chadwick heard the whale's songs changed completely. \bones.\him over curiously, but never harmed him.
The whale then swam under the boat. It pointed its head down to the ocean floor and, with flippers extended out to its sides, began to sing. Up in the boat, Darling recorded the whale's song. Such songs may be long and complex, lasting for 30 minutes or more; they are perhaps the longest songs sung by any animal. Why Do They Sing?
Darling says that only male humpbacks sing, but for unknown reasons. It was previously thought that they sang to attract females, but scientists showed this was incorrect when they played recordings of whale songs in the ocean and no females came around. Another idea is that male humpbacks compete with each other using songs, just as other male animals do using antlers, or tusks.
In addition to their long and mysterious songs, humpbacks make a variety of other sounds as they interact each day. When alarmed by enemies such as killer whales, or when the feeding is especially good, the sounds they produce can be louder than an airplane engine. A Brighter Future
During the days of heavy whale hunting, the world humpback population was reduced from an estimated 125,000 to around 6,000 animals. Thanks to laws against hunting, humpbacks now number perhaps 30,000 animals, although the constantly moving humpbacks are very difficult to count. However, it now seems that this mysterious singer will continue to sing for years to come. A. Multiple Choice. Question 1. What is this listening passage mainly about? Question 2. Why do humpbacks sing? Question 3. Which of the following is NOT mentioned as a situation in which humpbacks make sounds? Question 4. Which of these statements has been shown by scientists to be incorrect? Question 5. Which of the following is NOT true according to the passage? Script
Another variety of singing whale is the blue whale. Like humpbacks, blue whales sing songs that marine biologist Phillip Clapham describes as \the most complex in the animal kingdom.\kilometers per hour when interacting with other whales. However, this speed couldn't help them escape from their human enemies, who hunted them until they nearly disappeared last century. Happily, laws now protect blue whales, and their numbers are increasing again. Curious to know more about them, National Geographic scientists have connected cameras to blue whales in the ocean. The cameras, which don't hurt the whales, have given scientists valuable information about the ways blue whales swim, eat, and sing. This information helps scientists better understand and protect blue whales.
2B Our Bond with Dogs Answer Key
Before You Listen
A. Answers will vary, but ask students to provide reasons for their choice to show the students have properly considered the questions. B. 1. Jacques, a beagle 2. Tiffy, a Maltese 3. Jessie, a whippet Listening Comprehension A. 1. c 2. b 3. b 4. c 5. a
B. 1. Tiffy: d and e 2. Jacques: c 3. Jessie: b 4. Both Jessie and Jacques: a After You Listen
A. Refer to the listening script 1. the smell of our garbage 2. a use for those powerful noses 3. beneficial to all 4. smell bombs on planes 5. an excellent sense of smell 6. they are domestic animals 7. profit from the special skills of the other
B. 1. acquire 2. obedient 3. talent 4. plenty 5. selection Script
Dogs in a Human World
The partnership between humans and dogs began perhaps 14,000 years ago. Our first
interactions may have occurred when wild dogs were attracted to human garbage, or humans may have acquired the puppies of wild dogs and trained them to be obedient pets. By means of the careful selection of dog parents, humans have been able to create a wonderful variety of dogs with plenty of talents and many different looks. Here are three examples of \the human world. The working dog
Jacques is one of many beagles that work at airports for the U.S. government in a program known as the Beagle Brigade. Beagles were chosen for this work because of their powerful noses. Their job is to smell and alert officers to illegal fruits, vegetables, and other foods in luggage or in mail. They do the job far better than humans could alone.
Some of the beagles who work in the program are donated by private owners, but many are ownerless beagles rescued from animal shelters. Many beagles who were scheduled to be euthanized are now working to keep their country safe from disease. Treated like a queen
Tiffy, a beautiful eight-pound maltese is treated like a queen in New York City. Her owner, Nancy Jane Loewy, carefully prepares her meals of lamb, steak, salmon, tuna, chicken, and a variety of fresh vegetables. Tiffy also gets low-fat yogurt and cookies after dinner. Why? Loewy replies, \have a dog because the dog needs me.\
Leowy, whose husband has a high-paying job and whose two sons are away at school, has the time and money to treat Tiffy extremely well, and she truly enjoys doing so. \the healthiest, most wonderful life possible for as long as possible.\
Jessie is a whippet that visits children who are fighting deadly diseases. She brightens patients' days with love and gives children a chance to exercise. At the National Institutes of Health, Jessie helps patients like young Lukas Parks to stay strong during their long hospitalization.
Whether as workers or objects of affection, dogs have certainly proven themselves to be beneficial to humans in many ways. At the same time, their special place as \has allowed dogs to survive in a human world. While wolves and wild dogs have nearly disappeared from the earth, domestic dogs continue to grow in number, thanks to their special relationship with humans. A. Multiple Choice. Question 1. What is the author's purpose in writing the passage? Question 2. Which of the following is NOT mentioned in the passage? Question 3. Which one is NOT true according to the passage? Question 4. Which one of the following is NOT a reason Loewy treats Tiffy extremely well? Question 5. Which dog eats human food? Script
Dogs were probably first attracted to humans by the smell of our garbage. Nowadays, the government of the United States has a use for those powerful noses that is beneficial to all who fly in airplanes. A program in Texas trains dogs to smell bombs on planes and in passengers' luggage. Although other wild animals also have an excellent sense of smell, dogs are much easier to train because they are domestic animals that pay attention to humans. The partnership between dogs and humans allows each to profit from the special skills of the other as they work together to save lives.
B. Completion. Have students do Activity B. Then, have students check answers with a partner.
C. Talking.
1. Have students do Activity 1 and select some to read aloud their sentences.
2. Have students do Activity 2 and tell them that their answers can vary, but they must give examples to support their answers. Select some students to report their discussion.
Viewing
Man's Best Friend Answer Key Before You View
A. a. 2 b. 1 c. 4 d. 3
B. Refer to Video Summary. Viewing Comprehension A. 1. F 2. T 3. T 4. F 5. T
B. Refer to the video script. Answers will vary. 1. herd livestock such as sheep; 2. some of the coldest and most dangerous places on earth; drugs and other illegal items in people's luggage; 4. working with people in the distant past -- roughly 14,000 years ago. C. 1. They needed to protect each other from harm 2. It was a hunting partnership 3. It was a need for companionship 4. A combination of the above three After You View
A. 1. remarkable 2. obedient 3. collapsed 4. interact 5. companion 6. domestic B. 1. Refer to the video script. Answers will vary. 2. The answer will vary, but must be based on the fact or facts. Script
Man's Best Friend Narrator:
Dogs are often known as man's best friend. Many societies have them as pets or rely on them to perform a variety of tasks. The story of man and dog is a complex story that goes back thousands of years and will almost certainly go on for thousands more. Dogs interact with humans in a variety of ways. Dogs such as border collies are trained to herd livestock such as sheep. Huskies pull us through some of the coldest and most dangerous places on Earth. Dogs have a sense of smell 1,000 times more powerful than our own. This means they can search for people who are lost under deep snow, or under the debris of a collapsed building or deep in the forest. Beagles perform their duties at airports, where their sense of smell helps them to find drugs and other illegal items in people's luggage. They lead the blind and help to ease the lives of disabled people. For many, the dog is also an obedient companion -- and friend.
When did this remarkable partnership start? We know now that the wolf began working with people in the distant past -- roughly 14,000 years ago. Over the years, the wolf became the talented domestic pet we know as the dog. There are plenty of theories, but the real reason why humans acquired dogs is still unknown. Was it because they needed to protect each other from harm? Was it a hunting partnership? Was it a need for companionship -- a type of friendship? Or was it a combination of the three? For 14,000 years the dog has played an important role in
human societies. It's a partnership that's likely to continue for many years to come.
Writing Answer Key
A. Refer to summaries of each lesson in this unit.
B. Besides dogs, human beings have a close bond with elephants especially in those tropical countries. Not like dogs, elephants are not kept as pets. They help to transport logs from the jungles. Because of their huge build, human beings can ride on them and go through the jungles and across the streams easily. Elephants can also be trained to perform in front of tourists which will bring these countries a large fortune. Unfortunately, in some developing countries, many elephants got hurt by the mines placed during the war and became disabled. So the government and some international societies are working together to help them.
Unit 3 History Detectives Warming Up Answer Key
1. Answers will vary, but should be supported by reasons to show that students have properly considered the questions. 2. Researchers learn about the past from written records and physical remains such as the ruins of buildings, equipment or personal possessions that have survived, and sometimes human bodies. 3. Possible answers: Egyptian, Mesopotamian, Greek, Roman, Aztec, and Incan. They are famous for their art and architecture, including their tombs.
Listening
3A Secrets of the Pharaohs Answer Key
Before You Listen
A. From top to bottom: tomb; coffin; mummy; Archeologist
B. Theories include murder, an injury from war or a hunting accident, or an infection from a knee fracture.
Listening Comprehension A. 1. c 2. b 3. c 4. a 5. d
B. From left to right: 5, 2, 3, 1, 4 After You Listen
A. 1. lived very luxurious lives 2. complex theory of life after death 3. treated with oil and spices, and covered in cloth to exclude any water 4. tests conducted by researchers 5. whether they had any injuries B. 1. infected 2. analysis 3. murder 4. teenagers 5. attachment C. 2. a) Tell students they may answer the question based on their knowledge. b) Answers will vary, but should be based on the students' own understanding. Script
Was King Tut Murdered?
King Tutankhamun was just a teenager when he died. He was the last king of a powerful family