Would you eat an insect? It might sound disgusting, but insects have actually been part of _______ diets in many parts of the world. In Thailand, fried crickets are a popular snack. In Ghana, eating termites helps people get the protein they need. And in Mexico, ant eggs fried in butter are thought to be delicious.

Moreover, eating insects could be the _______ to world hunger. Many people around the world don’t have enough food to eat. Meanwhile, the earth’s population keeps growing. It is said that it will reach 9,000,000,000 by the year 2050. Also, we are quickly running out of new land to use for farming and raising animals. The number of fish in our oceans is also decreasing, because of pollution and overfishing. On the other hand, there are plenty of insects available; this is why a United Nations（UN）report _______ using insects as food.

Insects are not only more than enough but also good for your health. They contain lots of protein and important nutrients. Locusts, for example, actually contain more iron than beef does. Moreover, raising insects for food is better for the environment than raising other animals, because they _______ less land, food and water. Also, farm animals like cows and pigs give our harmful greenhouse gases into the air after they eat. Insects release greenhouse gases too, but not as much as other animals. _______ they can breakdown the waste and dead bodies of other animals, returning their nutrients to the soil.

Insects are already being eaten by many people across the world. Even if it seems _______, we should keep an open mind. It could mean the difference between life and death for starving people around the world.

OBSOLETE JOBS

In the past, there were lots of jobs that we don’t have anymore. Many of these jobs have been taken over by machines, but some have just disappeared altogether. Let me tell you about some of them.

1. Telegraph Operators

Long ago, people used telegraphs to send messages over long distances. It was like sending an old-fashioned text message, but you needed a telegraph operator to send it using a special machine. But now, we don’t have telegraph operators anymore!

2. Lift Operators

These days, when we want to go up or down in elevator, we just press a button. But a long time ago, before 1950, there were people called lift operators. They would ride in the elevator with you and operate it. Nowadays, we don’t see lift operators very often, but some still work in special places like the Eiffel Tower in Pairs.

3. Lamplighters

Back at the start of the 20th century, many cities used gas street lamps, not electric ones. Lamplighters had the job of going around in the evening and lighting these lamps with a big candle on a long stick. They would light about a hundred lamps in an hour. But today, we have electric streetlights, so lamplighters are gone.

4. Typesetters

Before we had computers, people used to make books and newspapers by hand. They had to arrange metal letters in wooden frames to create the pages. It was a bit like a big puzzle! Nowadays, computers help us do this work efficiently, so typesetters are not needed anymore.

5. Switchboard Operators

Believe it or not, in the past, when you wanted to make a phone call, you had to talk to an operator. You had to tell them the number you wanted to call, and they would connect your call for you. This job was mostly done by women at the beginning of the 20th century. But now, we can make phone calls without operators.

Will more jobs disappear in the future? It’s very likely. The world is changing so quickly that ________. That’s just how the world works!

54. Write a paragraph in at least 80 words to give your opinion according to the given information. (根据以下内容，写一段不少于80个单词的文字发表你的观点)

第2单元的主阅读Fishing with birds介绍了一种中国的传统技艺——鸬鹚捕鱼。文章结尾写道：In 50 years, perhaps there will be no more cormorant fishermen in the world. 你觉得鸬鹚捕鱼这项传统技艺会消失吗？给出你的观点，提供至少两个理由，并进行适当的论证。