Many animals move from one place to another at certain times of the years,     1     is called migration. They migrate to find food, seek a partner, or in search of warmer weather.

Every autumn,     2    （million）of the North American monarch butterflies begin a long and difficult journey. They manage to travel around 4,000 kilometers south and get to California or Mexico. However, how they did this was unclear.

A team of scientist has now found that the monarch is able to tell the time of day. It uses its eyes     3    （measure）the position of the sun. It uses the time of day and the point of the sun to determine the way to go and change its     4    （direct）. Eventually, it manages to reach the place     5     it will spend the winter.

In the last few years its population     6    （crash）significantly.     7    （sad），human activity is the main reason why the number of monarch butterflies is falling.

People cut     8     trees and use chemicals, which destroys the natural environment.

The research on the monarch’s behaviour has lead to a greater     9    （aware）of this creature. There may come a time when the number of monarch butterflies increases once again. The     10    （much）we know about this lovely creature, the greater the chance it will survive.

2 . Many elephants can paint. In fact, elephants in zoos sometimes draw on the ground     1     a stick. Seeing this, some trainers teach the elephants     2     they can hold paintbrushes, and encourage them to choose colors and paint. Of course, not every painting is good. Just like humans, only some elephants are very creative. Now, an online gallery sells paintings by these elephant artists. By doing this, the gallery hopes to earn money     3     (protect) elephants.

Many of us were raised with the saying "Waste not, want not.” None of us,     1    , can completely avoid waste in our lives.

Any kind of waste is thoughtless. Whether we waste our potential talents, our own time, our limited natural    2    (资源), our money, or other people's time, each of us can become more aware and careful. The smallest good habits can make a big d    3    . It's a good feeling to know in our hearts we are doing our b    4    in a world that is in serious trouble. By focusing on    5    (节省) oil, water, paper, food, and clothing, we are playing a part    6    cutting down on waste.

We must keep reminding     7    (自己) that it is easier to get into something     8     it is to get out of it. Actually, severe damage d    9    to our land is fairly recent in the history of our evolution. It’s time for us to    10    no to waste so that our grandchildren’s children will be able to develop well. We can't solve all the problems of waste, but we can encourage mindfulness.

Waste not！

Dollywood, in the beautiful Smoky Mountains in the southeastern USA, is one of the most     1    theme parks in the world. Dollywood shows and celebrates America’s traditional southeastern culture.     2    Dollywood has rides, the park’s main attraction is its culture. Famous country music groups     3     there all year in indoor and outdoor theatres. People come from all over America to see     4     and other craftsmen make wood, glass and iron objects     5     the old-fashioned way. Visit the candy shop     6     try the same kind of candy that American southerners     7     150 years ago, or take a ride on the only steam-engine train still working in the southeast USA, You can     8    see beautiful bald eagles in the world’s largest bald eagle preserve. And for those     9     like rides, Dollywood has one of the best old wooden roller coasters, Thunderhead. It is world-famous for having the most length in the smallest space. Come to Dollywood to have fun     10     all about America’s historical southeastern culture!

Peru is a coastal country along the Pacific， mainly made up of       1     parts： a narrow belt     2     parallel（平行） to the coast， the Andes Mountains， and the Amazon rainforest. The ancient Inca Empire once existed in the 1400s and 1500s， which was     3     then. But in the 1600s， Peru was     4     by Spain， and its     5     came to an end in 1821. Because of this， the main     6     language in Peru is Spanish.

Two popular tourist     7     are the Amazon rainfor­est， and Machu Picchu. You can take a short flight into the rainforest， where you can choose your accommodation in the middle of the forest，     8     the rainforest， where plants and animals are     9    . At Machu Picchu， you will be     10     by its dry stone method of building.

Nowadays, with the rapid development of our society, the environment we live in is severely damaged. The u    1    (普遍) acknowledged belief that the development of economy is a top priority is being challenged. People are increasingly     2    (意识) of the significance of protecting the environment in that nothing can     3     (弥补) for the damaged environment.

Making a    4     for the fact that environmental pollution is becoming more and more serious, we’d better take immediate measures to solve it. On the one hand, we are supposed to make some a    5     to the way in which our economy is developed. On the other hand, in order to solve this t    6     problem,     7     (合作) is also necessary. Only when the enterprises and the governments make a joint effort will we be able to make progress.

Actually, we have no o    8     but to develop our economy in an environmentally-friendly way. I firmly believe that as long as we don’t s    9     from the responsibility everyone of us should take, developing without polluting the environment is no longer     10     (理论上) possible.

7 . Typhoon Mangkhu attacked the Pearl River Delta on Sunday,    1     (leave) a trail of damage, flooding and injuries in its wake and forcing the closure of schools, markets and most public s    2     across the area.

After claiming at     3    29 lives in the Philippines, the     4    (destroy) storm has caused 4 deaths in Guangdong.

Hong Kong Observatory kept its highest No 10 Hurricane Signal (十号风球) in effect for 10 hours from morning to evening on Sunday.

In the Hong Kong Special Administrative Region, strong winds and heavy rain left more than 213 people    5    (injure) , and over 1,200 people sought refuge (应急避难) in temporary government shelters.

According to the Guangdong Meteorological Observatory, Mangkhut will c    6    to cause heavy rain and bring strong winds to the province    7    Thursday.

E    8     said the warm seawater in the South China Sea helped Mangkhut maintain its strength after an     9    (early) landfall in the Philippines.

P    10    , firefighters and other members of government departments worked overnight to clean and repair damaged public facilities.

Perhaps the most extraordinary building of the nineteenth century was the Crystal Palace,     1     was built in Hyde Park for the Great Exhibition of 1851. The Crystal Palace was different from all other buildings in the world,     2     it was made of iron and glass. It was one of the     3     buildings of all time and a lot of people from many countries came to see it. A great many     4     were sent to the exhibition from     5     parts of the world. There was also     6     great deal of machinery on display. The most wonderful piece of machinery on show was Nasmyth’s steam hammer. Though in those days, travelling was not as easy as it is today, steam boats     7    thousands of visitors across the Channel from Europe.     8     arriving in England, they were taken to the Crystal Palace by train. There were six million visitors in all, and the profits from the exhibition     9     to build museums and colleges. Later, the Crystal Palace was moved to South London. It     10     one of the most famous buildings in the world until it was burnt down in 1936.

9 . I had heard of the killers that helped whalers catch huge whales. When I worked at a whaling station, I     1     it many times. One afternoon, I heard a loud noise coming from the bay. We ran down to the shore     2     time to see an enormous animal throwing itself out of the water. George, one of the whalers, told me that it was Old Tom, the killer, who was telling us there's a whale. Another whaler     3     out to     4     a whale hunt. We immediately headed out into the bay, with Old Tom     5     us the way. Using a telescope we saw that several killers    6     there were throwing themselves on top of the whale's blow­hole to stop it     7     while others were stopping it diving or     8     out to sea. Then the man in the bow of the boat aimed at the whale and killed it. These killers     9     harmed or attacked people. Once when we were in the bay, the sea was     10     , for which James was carried away by waves. Worse still, there was a shark. Fortunately, Old Tom rescued James.

Animals are important     1    （自然资源）. Animals have been killed for their     2    （毛皮）or     3    （羽毛），for food and so on. Now people hunt animals,     4    （砍倒）tress and     5    （破坏）their    6    （栖息地）. So the number of the wild animals is     7    （减少）. Many wild animals are in danger of     8    （灭绝）. We should raise awareness of protecting     9    （野生动物）and live     10    （和谐相处）with them.