depressing       depression       depressed       depresion   

3. Research shows there are more ______ on your phone screen than on a toilet seat.

omega 3       guts       germs       bacteria

4. The vet has asked the cat's owner to ______ the treats as Garfield, who weighs 6.6kg, is overweight.

lay off       lay over       lay out       lay down

5. A plan to have dogs in the workplace will help reduce workers' ______ and fatigue.

germs       perk me up       pleasure       stress

答案 1. 阅读课文并回答问题。

1. What does the author mean when he says unhealthy food, such as cakes, is bad for your waistline?

They make you fat; your waistline gets bigger!

2. Approximately how many bacteria are thought to be in our body?

It's thought we have 39 trillion of these simple, small organisms in our body.

3. What kind of bacteria do scientists believe will put us in a good mood?

'Good' bacteria.

4. What phrase does the author use to mean carefully consider what you do at the moment or what you are planning to do is a good idea?

'Think twice'.  He says 'This really makes me think twice about what I eat.'

5. According to Doctor Michael Mosley, where in the world is food containing 'good' bacteria mostly found?

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