Sophie, 13, won the 2019 New Zealand’s “Think kind” competition for students. “I held a beach clean-up, because it really _______ me that marine（海洋的）life is hurt by thoughtless decisions of humans.”

Sophie saw _______ on the sea floor while snorkeling（徒手潜泳）. “It was the first time I’d seen marine life _______ among plastics.”

It was the trigger（起因）of her act. “We weren’t taking enough _______. Everyone needs to do their _______, otherwise we’re going to _______ our planet.”

Sophie turned to media to get her _______ out and ask for volunteers at the clean-up. To her surprise, more than 200 people turned up. 200 kilograms of rubbish were _______ that day. “It was horrible. We knew rubbish was there but we didn’t realize how _______ the rubbish was until we started collecting.”

Once ecological awareness（生态意识）________ Sophie, she decided to do something different. On her 14th birthday, she decided to celebrate differently. ________ holding a party creating waste, she decided to reduce it. On her “party”, Sophie and her friends ________ to pick up the rubbish that stored up along the river bank near the town.

“If there is one thing everyone could do, it is to ________ after yourself”, says Sophie. “It’s hard for some families to afford plastic alternatives, but just not buying things wrapped in plastic will help.” She suggests using ________ materials like metal straws. “When there are more alternatives on the market, it will be ________ for individuals to make a change.”

We all know that many inventions have changed our life a lot. They play important roles in our daily life. Here are some interesting inventions.

Every morning Hannah Griffiths and her workmates walked into the rainforest in the Maliau Basin in Borneo, where they had set up a set of experiments to look at the ecological effects of small creatures: termites（白蚁）.

Termites are notorious. They are thought to make a loss of billions of dollars each year in the US because they bite a lot of things. And they are responsible for something like 2% of global carbon emissions, simply because of their huge populations and their liking for chewing through carbon-rich materials. People hate them and are trying to kill them.

But they play a key role in many natural ecosystems. Scientists have known for years that in tropical forests, termites chew up fallen leaves and dead wood. They help keep the fallen material under control. They let nutrients from the dead material back into the system to be used by other plants, insects, and animals. But scientists didn’t know exactly how important the insects were in keeping the forest healthy and functional, so they removed termites from some areas of the forest and saw what would happen.

Hannah Griffiths and her workmates started their experiments. It chanced that the forest was hit by an extreme drought at that time. During the non-drought years, they saw there was wasn’t much difference between the normal places and the ones where they’d removed the termites, but during the drought, the effects were easy to see. What they found was unexpected: in the termite—rich areas, the soil stayed slightly wet, more trees seedlings sprouted, and the system worked well during the long, dry period.

They could pick out the real importance of termites to the system only because they happened to study the drought, Griffiths pointed out, “And that rings alarm bells in my head,” she said, “because it makes me think: what else don’t we know? If we start damaging biological communities, what will happen? And what if a species dies out?”

Surrounded(环绕) by mountains and snow, Chinese pianist Lang Lang played “Loving Dream”, “Jasmine Flower” and “Goldberg Variations” at the highest railway station in central Switzerland. The show was     42    (warm) welcomed by the audience. What he did helped     43     the cultural exchanges between China and Europe by means of music.

Lang Lang is one of the leading     44     (musician) in the classical music world. Though he put on thousands of shows worldwide, this was his first time to play     45     piano at the top of a snowy mountain. The low temperature     46     (make) it quite challenging for him. However, playing in a “fairytale-like” environment was a very special experience, according to Lang Lang,

“The piece ‘Jasmine Flower’     47     (choose) specially for this show,”Lang Lang said,”I   played this beautiful piece from my own culture, hoping     48    (draw) the audience’s interest in learning more about China through the beauty of Chinese music.”

Before Lang Lang played the     49    (three) piece, his fingers became a little cold,     50     he showed no fear of the heavy snow and the thin air.”I hope we will do more cultural exchanges in the future so as to understand each other better and build a     51    (close) relationship between the two countries than before,” added Lang Lang.

Many students want to improve their memories and learn better. Today we will introduce some no-cost things you can do.

Exercise

Before you study, doing exercise may help you better remember what you will learn. Recently, researchers have found that people who did 15 minutes of training remembered more words. Scientists say the best time to exercise is right before you study. It can make you more active.

Pre-study test

The students who take a test before studying remember more information than those who don't. For example, if you are using an English textbook, you might first look at some important words at the end of the unit. You could ask yourself what they mean or how they are used. While you might not know the answer, you will probably have a goal to learn so that you can remember the answer when studying!

Sleep

A study show that sleep helps you to learn in two ways. An expert explains that "a person with enough sleep can concentrate best." He also says, "Sleep itself plays an important role in making the memory stronger which is necessary for learning new information.”

Wakeful rest

When you finish studying, you often go straight another activity. Perhaps you play a video game or watch TV. But researchers suggest that resting after you study may help you remember what you've studied. In a study, even older adults who rested for 10 minutes after learning new words remember more words better.

57. 假设你是李华，你校将要举办“劳动实践周”活动。请根据以下提示，给你的英国朋友Scott写一封信，邀请他参加。

How is everything going? I’m writing to tell you a piece of good news. _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua