1 . No matter what your age is, you can lose ________ (重量) by doing some sports.

2 . —What is the w________ of the goldfish in the bottle?     
—About 400 grams.

3 . Lily has put on ten pounds, she decides to lose _______.

4 . 用所给单词的适当形式填空，每词仅用一次（每字词）。

perform       ending       somebody        weight          crazy

1. There's no need for teenagers to lose ________.
2. Most children like stories with happy ________.
3. Jack must be ________ to hang out with the Banker.
4. Sally ________ an important role in her last morning.
5. We are looking for ________ with a clear sense of direction.

5 . We can lose ________ (weigh) by eating less and doing more exercise.

6 . —Do you know the ________ of the stone? 
—Yes. It ________ about 200 kilos.

A．weight; weighs

B．weight; weigh

C．weigh; weighs

7 . What a pity! Sue lost the game because the ________ (weigh) of her shoes made it difficult for her to run fast.

8 . —Do you know the ________of the stone?
—Yes. It ________ about 200 kilos.

A．weight; weighs

B．weight; weights

C．weigh; weighs

D．weigh; weights

9 . —What’s the   ________ (weigh) of the Golden Gate Bridge？—More than 100 ,000 tons.

10 . If you eat too much sweet and fat，you'll put on ________ (体重) easily.