四、选择恰当的一项,补全对话。(有一项多余)
Grandma: 1.
Lili: I'm writing a plan(计划) for my mom's birthday party.
Grandma: Sounds great. 2.
Lili: I can sing a Chinese song "Jasmine Flower".
Grandma: Your mom will love it.
Lili: Thank you, Grandma. Where are you going?
Grandma: 3.
Lili: Look at the clouds in the sky. 4.
Grandma: Thank you. I will.
A. I can take photos for you.
B. I'm going to the park with my friends.
C. What are you doing, Lili?
D. Please take your umbrella.
E. What can you do at the party?

1. C 2. E 3. B 4. D

趣味小测验
eighty + ten = ()
ninety - forty = ()
() + forty = fifty
fifty - five - five = ()
() + eight - two = ninety
thirty + seventy = ()
sixty - sixty = ()
() + sixty = one hundred
forty - one - () = one
a hundred - () = thirty- seven

ninety；fifty；ten；forty；eighty-four；one hundred；zero；forty；thirty-eight；sixty-three

我们先将题目中的英文数词转换为对应的阿拉伯数字完成算术运算，再把结果转换为对应的英文数词即可：
1. eighty意为80，ten意为10，80+10=90，对应英文数词ninety
2. ninety意为90，forty意为40，90-40=50，对应英文数词fifty
3. 根据“加数=和-另一个加数”，fifty（50）-forty（40）=10，对应英文数词ten
4. fifty意为50，50-5-5=40，对应英文数词forty
5. 逆推计算：ninety（90）+two（2）-eight（8）=84，对应英文数词eighty-four
6. thirty意为30，seventy意为70，30+70=100，对应英文数词one hundred
7. sixty意为60，60-60=0，对应英文数词zero
8. 根据“加数=和-另一个加数”，one hundred（100）-sixty（60）=40，对应英文数词forty
9. 逆推计算：forty（40）-one（1）-one（1）=38，对应英文数词thirty-eight
10. 逆推计算：a hundred（100）-thirty-seven（37）=63，对应英文数词sixty-three