问题 填空题

想一想,填一填.

(1)你能找出多少个6的倍数?

6×1=______

6×2=______

6×3=______

6×4=______

6的倍数有:______

(2)你能找出多少个9的倍数?

9÷9=______

18÷9=______

27÷9=______

36÷9=______

9的倍数有:______

通过上面的探讨,我们可以发现:

一个数的最小倍数是______,没有最大的倍数,倍数的个数是______.

一个数的最小因数是______,最大因数是______.

答案

(1)6×1=1;

6×2=12;

6×3=18;

6×4=24

6的倍数有:6、12、18、24…;

(2)9÷9=1;

18÷9=2;

27÷9=3;

36÷9=4;

9的倍数有:9、18、27、36…;

一个数的最小倍数是 它本身,没有最大的倍数,倍数的个数是 无限的.

一个数的最小因数是 1,最大因数是它本身.

故答案为:(1)16、12、18、24;6、12、18、24、…;(2)1、2、3、4;9、18、27、36…;它本身;无限的;1;它本身.

多项选择题
单项选择题

阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

A

A Language Programme for Teenagers

Welcome to Teenagers Abroad! We invite you to join us on an amazing journey of language learning.

Our Courses

Regardless of your choice of course, you’ll develop your language ability both quickly and effectively.

Our Standard Course guarantees a significant increase in your confidence in a foreign language, with focused teaching in all 4 skill areas----speaking, listening, reading and writing.

Our Intensive Course builds on our Standard Course, with 10 additional lessons per week, guaranteeing the fastest possible language learning (see table below).

Evaluation

Students are placed into classes according to their current language skills. The majority of them take on online language test before starting their programme. However, if this is not available, students sit the exam on the first Monday of their course.

Learning materials are provided to students throughout their course, and there will never be more than 15 participants in each class.

Arrivals and Transfer

Our programme offers the full package—students are take good care of from the start through to the very end. They are collected from the airport upon arrival and brought to their accommodation in comfort. We require the student’s full details at least 4 weeks in advance.

Meals/Allergies(过敏)/Special Dietary Requirements

Students are provided with breakfast, dinner and either a cooked or packed lunch(which consists of a sandwich, a drink and a dessert). Snacks outside of mealtimes may be purchased by the student individually.

We ask that you let us know of any allergies or dietary requirements as well as information about any medicines you take. Depending on the type of allergies and/ or dietary requirements, an extra charge may be made for providing special food.

With the full package, the programme organizer is supposed to() .

A. inform students of their full flight details

B. look after students throughout the programme

C. offer students free sightseeing trips

D. collect students’ luggage in advance