我国现在推行的教育改革目标之一，就是让学生学会独立思考、主动探究、自主学习。因为这种学习方式（  ）

①是学习过程的本质要求                        ②适应现代社会知识发展的特点

③适应现代社会对个人素质的要求        ④能帮助我们解决所有的学习问题

下图表示的是身边一些物质在常温下的近似pH，有关这些物质的比较和判断正确的是（）

根据首字母或中文提示完成句子。
Tony likes talk show. But he can't s____ Chinese cooking.
Look! Tom and his family are l____ on the beach, they look happy.
We had great fun s____ in the river.
The pop singer w____ funny glasses is Johnny Dean.
I'm s____she can dance so well. She is only 7 years old.
——What e____ do you have to do?——We have to clean the classroom.
 On weekends, the shops are too c____, there are so many people in them .
——What's Lilei doing?—— He's w____ for the bus.Jenny is lazy, she n____does her homework at home.
Do you think everyone e____  their weekends?

①克服“试一试”的好奇心，坚决抵制不良诱惑

②谨慎交友，克服盲目的从众心理

③科学用药，避免毒品陷阱

④控制吸食毒品的次数和剂量，以防上瘾