3 . Demands for stronger protection for wildlife in Britain sometimes hide the fact that similar needs are felt in the rest of Europe Studies by the Council of Europe of which 21 countries are members have shown that 45 per cent of reptile species and 24 per cent of butterflies are, in danger or dying out.

European concern for wildlife was outlined by. Dr Peter Baum, an expert in the environment and natural resources division of the council when he spoke at a conference arranged by the administrators of a British national park. The park is one of the few areas in Europe to hold the council’s diploma for nature reserves of the highest quality and Dr Baum had come to present it to the park once again. He was afraid that public opinion was turning against national parks and that those set up in the 1960s and 1970s could not he set up today. But Dr Baum clearly remained a strong supporter of the view that natural environments needed to be allowed to survive in peace in their own right.

“No area could be expected to survive both as a true nature reserve and as a tourist attraction.” he went on. The shortsighted view that reserves had to serve immediate human demands for outdoor recreation should be replaced by full acceptance of their importance as places to preserve nature for the future.

“We forget that they are the guarantee (保证) of life systems on which any built-up area depends,” Dr Baum went on. “We could manage without most industrial products but we could not manage without nature. However our natural environment areas which are the original parts of our countryside have become mere islands in a spoiled and highly polluted land.”

Astronomers have published a major finding    1    (recent): A black hole has been releasing energy from a small star    2    was shredded (吞噬) in 2018, after two years in which it didn’t emit (发射) any such material.

“Super unusual,” said Yvette Cendes, an astronomer at Harvard. “We’ve never really seen this before to this degree.”

Researchers made the    3     (discover) when they used a    4     (power) radio telescope facility to check some two dozen black holes where stars had been shredded after     5    (come) too close to them. Such happenings    6    (call) tidal disruption (潮汐破坏) events, or TDEs.

What they found was that one of the TDEs was emitting energy at an unusual speed    7    at a very surprising time: more than two years after the event.

This behavior is different from what has been observed in black holes before, in two ways. First, the timing: it’s more common    8    (see) radio emissions from black holes within the first few months after swallowing a star. And second, the energy emitted in this case doesn’t quite fit in    9    what astronomers have seen before.

In most cases of black holes swallowing stars, perhaps 99%, the outflow is lower in energy. And in 1% of cases, that outflow, at about half the speed of light, rarely    10     (occur).

5 . Keeping curious kids from disrupting wildlife

Interacting with the wild, naturally curious kids tend to collect seashells at the beach or keep small wildlife as pets.     1     So how to help kids protect the wild while enjoying spending time outsides? Here are alternatives for some of the most common outdoor behavior no-nos.

Take an interest, not things. Kids show interest in picking flowers, rocks, or shells outdoors. They’re part of wildlife's habitat and play an important role.     2     Let kids explore with a magnifying glass (放大镜)instead of their curious fingers. Let whatever they find outside stay outside.

    3     It seems a fun idea to throw pieces of bread to ducks. Animals have unique dietary needs that are different from humans. Eating human food can make them sick or become dependent on human food. Bears are an example of animals that often have to be killed after developing a taste for human food.

Admire animal afar, not disrupt nearby. The urge to take a photo with a squirrel, bird, or slow-moving turtle can be strong for kids.     4     Instead, remind kids to stay away and show them how to use a camera's zoom button, or just admire with their eyes.

Take well-worn paths, not off-road romps (嬉戏). Kicking piles of leaves, stepping on bushes, and walking through forested areas can unintentionally scare wildlife. If surprised animals defend their homes, everyone could get hurt. Nobody likes having a guest come in and destroy their home and act rudely.    5