It’s a tough animal that has to survive in a difficult environment. Also, it cannot walk backwards, so it is always moving forward. This expresses the     1     of the Australians as individuals and as a nation. Baby kangaroos weigh only two grammes at birth. They then     2     their mother’s pouch-a kind of pocket-to stay safe and warm. They sleep and drink milk. . until they are about seven or eight months old.     3    , they go out to try their legs. After they to jump, they gradually spend less time with their mother and learnt to be independent. Kangaroo may look cute, but     4     don’t always end so well. Kangaroos can hit and kick very hard, so please folks, if you see some kangaroos, remember they’re not for petting!

【推荐3】阅读下面短文，在空白处填入几个适当的单词。

The experts were now fully convinced that the animal was a puma， but where had it come from? As no puma had been reported missing from ant zoo in the country, this one must have been in the possession of a private collector and somehow     1     The hunt went on for several weeks, but the puma was not caught. It is disturbing to think that a dangerous wild animal is still     2     in the quiet countryside.

Fishing is one of the most     1     (strike) drivers of declines (降低) in ocean wildlife populations. Catching fish is not naturally bad for the ocean and without doubt     2     (accept), except when boats catch fish faster than stocks (储备) can catch up, something called overfishing.

The damage done by overfishing goes     3     (超出……范围) the needless loss of billions of fish. The number of overfished stocks     4     (global) has increased a lot in half a century and today one-third of the world’s fisheries are being pushed over their biological limits, according to the Food and Agriculture Organization of the United Nations. It is shown by a new study that more than one-third of all sharks and rays are now at risk of     5     (extinct) because of overfishing.

Overfishing is closely tied to bycatch — the catch of unwanted sea life while fishing for a specific species. This, too, is a serious marine (海洋的) threat that     6     (导致) the needless loss of billions of fish.

Billions of people rely on fish for protein, and fishing is the main livelihood for millions of people     7     (全世界).     8     (因此), governments and regional fisheries bodies must     9     (采取行动) now to stop overfishing and prevent a global crisis. To our relief, many people who make a living by catching and selling fish are working to promote how the world manages and protects ocean resources. WWF works with a lot of organisations to reform fishery management     10     (在全世界), focusing on sustainable (可持续的) practices that not only protect ecosystems, but also sustain livelihoods and ensure food security.

As we all know, there are varieties of resources in the depths of the sea. However,     1     (随着时间的流逝)，some marine creatures have died out. Therefore, marine pollution has been of great global concern.

First of all,     2     (迫切需要) make people aware of the importance of protecting the ocean, because     3     (保护海洋就是保护人类，不定式作主语和表语).     4     (与此同时), we     5     (赞成政府采取有效措施) to keep the balance of nature. No matter how great the difficulty is, we will have the marine resources properly     6     (exploit) and never will we give up protecting the ocean.