(Viên chức Mầm non) 600 câu trắc nghiệm Trọng tâm tiếng Anh có đáp án - Phần 15

We are all slowly destroying the earth. The seas and rivers are (1) _____dirty so swim in. There is so much smoke in the air that it is unhealthy to live in many of the word’s cities. In one well- know city, for example, poisonous gases from car pollute the air so much that traffic policemen have to (2) _______oxygen masks

We have cut down so many trees that there are now vast areas of wasteland all over the world. As a (3)______farmers in parts of Africa cannot grow enough to eat. It certain countries in Asia, there is too little rice. Moreover, we do not take enough (4) _____ of the countryside. Wild animals are quickly dissappearing. For instance, tigers are rare in India now (5)______we have killed too many for them to survive. However, it isn’t enough simply to (6) ______about the problem. We must act now before it is too late to do anything about it. Join us. Save the earth. This is too important to ignore.

Before people started farming, they went to the forests to look for plants or fruit they could eat. This meat that people (1) _____moving all the time to find food. But about 12,000 years ago, (2) ______ the Middle East, people began to grow food. These people were the first farmers. Farming made (3)____possible for people to stay in one place and slowly their villages got bigger.

Some people in the villages became free to (4) ____ other work, like making clothes, because the farmers could grow food everyone.

Unfortunately, farming was difficult when the weather was bad and then some people did not get (5)_____food to eat. Today, farmers can grow more food and it travels thousands of kilomettres from (6)_____it is grown to our homes.

The first people to build ships were the Egypitans 5000 years ago. They used (1)____to travel on the River Nile, the longest river in Africa. In the sixteenth century, people from Europe travelled thousands of kilometers, in large ships. It (2) ______ important that they found new ways around the world. Life was hard for these sailors and on the journey, (3) ______died because they often didn’t have enough food.

In the nineteenth century, ships called “clippers”(4) _____ tea from China to Britain and wool from Australia to the USA. In very strong winds, clippers could sail 650 kilometers (5) ______day.

In modern times, the largest ships are oil tankers. Some of these are 400 meters long (6) ______- the sailors have to use bicycles to travel round the ships!