1 . There’s no such thing as living alone. Never mind if you’re     1     only person in your house and have no dog, no cat, not even fish. You still have got several billion     2    (roommate) — and so do we all. Some of them are harmless, some are     3    (actual) helpful and some could even kill you. They are, of course, bacteria, fungi(菌类) and viruses, and like it or not, they’re on you, around you, and deeply inside you. The fact that bacteria life is everywhere is not     4    (surprise). It’s something you       5    (learn) from your childhood when your mother told you not to drink water from someone else’s glass. There are lots of bacteria     6     are living in your tea kettle. There are bacteria     7     (sleep) with you on your bed. Scientists are beginning     8     realize) the richness of the microbiome(微生物群系) — which is as complex as the ones     9     (find) in oceans, rainforests, deserts and woodlands. Your house has a microbiome and     10     do you.

2 . 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Have you ever     1     (imagine)what the world looks like through the eyes of a bee? You can try it out with the MicaToolbox．
The MicaToolbox is a free plugin(插件)     2     (build)by scientists at the University of Exeter in Britain. Together with Image J, a popular piece of software for     3     (science)pictures, it can turn many image into animal vision. This means people can check out the pictures     4     appear in the brains of animals such as insects, birds, and fish.
The way we see our world depends on how our eyes deal     5     light. Human eyes have three types of photoreceptors(感光细胞)，and this makes us see     6     colors of red, green, and blue. Animals,     7     , might see it     8     (different). A cat’s vision is similar to a human who is color blind, while bees can see ultraviolet(紫外线)light, easily finding patterns on flowers that show them the way to honey.
As of now, the MicaToolbox has already been used in many research projects,     9     (look)at, for example, how animals hide     10     (they). You can download the software from researcher Jolyon Troscianko’s website http: // www. jolyon. co. uk／myresearch／image—analysis／image—analusis—tools.