1 . ______ is acknowledged to us all that the old scientist, for whom life was hard in the past, still works hard in his eighties. (用适当的词填空)

2 . _____is known to us all that the 2022 Olympic Winter Games will take place in Beijing. (用适当的词填空)

3 . _____________never occurred to me that he would fail in the exam. (用适当的词填空)

4 . ________ was a challenge to get workers to make the kind of things they wanted. （用适当的词填空）

5 . Susan made________ clear to me that she wished to make a new life for herself. （用适当的词填空）

6 . Our present technology makes ________ possible for nations to develop new resources.

7 . ____ is a fact that English is being accepted as an international language. （按要求补全句子）

8 . 阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式（不多于3个单词）。

The Wandering Earth is a Chinese science fiction movie,     1     is based on the novel of     2     same name by Liu Cixin, and was released on February 5, 2019, the Chinese New Year’s Day.

After learning the sun is dying out ,people all around the world feel     3    (panic),so they build giant planet thrusters(星球推进器)to move the earth out of its orbit and sail     4    to a new star system. The 2500 years’ journey comes with unexpected dangers, but in order to save humanity, a group of young people come out bravely and fight hard for everyone’s    5     (survive)。

We     6     (impress) to see the theme of this film. It doesn’t particularly show somebody’s ability to save our world     7     shows all the human beings are working together,    8    (spare)no effort to save this world.

The Wandering Earth is seen by people     9    the dawn(开端) of Chinese science fiction movies. It means that China’s sci-fi movies have    10    (official) set sail.