题目内容：

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有多余选项。

Five reasons your scale might be wrong

1. You weigh yourself on different days each week.

In a Cornell university study published last year, researchers analyzed the food weight diaries that 80 people kept for up to a year. They found that people’s weight changed considerably throughout the week.    1.  Keep weigh-in days consistent for a more accurate assessment.

2.   2.

File this one under “Yes, scientists have actually studied this.” When University of North Dakota researches weighed people with and without clothes at various times of the year, they found that men can reduce 2.5 pounds for their clothing and women can reduce around two pounds, on average.

3. You don’t take muscle gain into consideration.

You’ve heard that muscle is denser (密度大的) than fat.   3.   If you start a strength-training routine, the number on the scale (秤) might not change, but you could still lost inches and drop a clothing size or two.

4. You just drank a lot of water.

It’s called water weight for a reason: Drinking one pound of water can translate to about one pound of weight. So if you stand on the scale soon after drinking an entire water bottle’s worth, you might not like what you see.   4.

5. You weigh yourself after hard exercise.

Compared with water weight, if you weigh in after a tiring cycling class, you may lose weight temporarily because you work up a good sweat .     5.

A．You miscalculate your clothing.

B．But don’t worry, it’s just a temporary gain.

C．Salty foods cause your body to save extra water.

D．In fact, it takes up only about a third as much space.

E．Jump on the scale if you need to improve.

F．You should be aware of how much water you have drunk.

G．Many people were heaviest on Mondays and lightest on Fridays.