1     (我写信感谢你的及时救援), without which my life couldn’t return to normal.

A few days ago,     2     (一场极其可怕的地震袭击了我的家乡), leaving many houses in ruins.     3     (shock) to find everything buried under the fallen houses, I burst into tears.     4     (世界似乎到了尽头). Thankfully, although you were strangers, you     5     (不遗余力) provide enough food and water for us to survive on. With strong support from the government and your generous aid, a new town was built upon the earthquake     6     (ruin).

I can’t express my gratitude too much.

Yours sincerely,

Li Hua

The hungry bear followed his nose to our camp, which was surrounded by a high wire fence. He pulled and bit the wire. He stood on his back legs and pushed at the wooden fence posts.     1    (恐惧喷薄而出，将我紧紧包围，我已经寸步难行了).     2    (惊恐不已，我觉得两腿发抖，手心冒汗). Beside me was my wife, who was rooted to the ground,     3    (吓呆了). At the sight of the polar bear’ bloody mouth,     4    (吓得要死).The furry creature launched an attack on the fence, instantly leaving a narrow opening on it.     5    (我们感觉浑身血液凝固了)because of the terrible sight. Our throats tightened and our knees felt weak. Elli and I tried all the bear defense actions we knew. We yelled at the bear, hit pots hard, and fired blank shotgun shells into the air.

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!