问题 解答题

维生素、无机盐在人体内含量都不多,所以作用都不大.______.

答案

维生素、无机盐在人体内含量都不多,但作用都很大.人体一旦缺乏维生素,就会影响正常的生长和发育,还会引起疾病,如图:

无机盐对人体也很重要,如果缺乏,也会引起相应的病症,如缺铁会造成缺铁性贫血.缺乏含钙的无机盐,会造成佝偻病;缺乏含碘的无机盐,会造成地方性甲状腺肿.

故答案为:×

阅读理解

阅读理解。

Dear Sonia,

     I am having a party for my 13th birthday. Can you come to my birthday party? It will be a wonderful

party. You can listen to some pop music and you can see a big birthday cake. I think it's much bigger than

your backpack. It is as big as a desk. Did you see such a cake? It will be a special party, too. It's also a ball.

You can dance to the nice music. But you have to take a partner (伙伴;搭档). The party begins at 7:00 pm

on Friday. Welcome to my house. You will enjoy yourself! Don't forget to take a boy!

                                                                                                                                   Yours,

                                                                                                                                    Lily

1. This is an invitation _______.

A. to a boy

B. From Sonia

C. to Sonia

D. to Lily

2. There is a very _______ at the party.

A. big backpack

B. small desk

C. big cake

D. big desk

3. The underlined (画线的) word "ball" means _______.

A. basketball

B. soccer ball

C. dancing party

D. match

4. The party will be held (举行) _______.

A. in the evening

B. next Friday

C. on the weekends

D. in the morning

5. If Bob goes to the party, he may need to take a _______ with him.

A. boy

B. girl

C. ball

D. dog

单项选择题