Ⅳ. Combine the sentences with so/such... that, too... to and enough to.
1. The camera cost very much. I didn’t buy one.

2. This is an important meeting. You should attend it.

3. The star is very far away. We can’t see it with our eyes.

4. The football fans saw Beckham. They got excited. They cried out.

5. The storybook is very difficult. I can’t understand it.

1. The camera cost so much that I didn’t buy one.
(or: The camera was too expensive for me to buy. )
2. This is such an important meeting that you should attend it.
(or: This is so important a meeting that you should attend it.)
3. The star is so far away that we can’t see it with our eyes.
(or: The star is too far away for us to see with our eyes.)
4. The football fans saw Beckham, so excited that they cried out.
(or: The football fans saw Beckham; they were so excited that they cried out.)
5. The storybook is so difficult that I can’t understand it.
(or: The storybook is too difficult for me to understand.)

Ⅴ. Rational cloze.
Soon, Zheng Leping will use his hand - made toothpaste (牙膏). The 15 - year - old boy at Beijing Bayi School is so happy 1. he can’t hide his great joy. “In the past, we never 2. (think) about how toothpaste was made. Through a research programme, we not only learned so much 3. toothpaste, but also made our own!” Zheng said.
In March, 2017, the school started a research programme for ninth - graders about toothpaste. Students searched for 4. (way) to make toothpaste. So far, they have produced 5. most important part—calcium carbonate (碳酸钙).
Zheng said, “We have to solve many problems by 6. (we) in the programme because our teachers say we are old enough 7. (do) research on our own.”
This programme helped students understand chemistry much 8. (well). Fang Yixin once had difficulty in 9. (remember) chemical equations (方程式). But now it is a piece of cake. She said, “I remember them 10. (easy) after doing these experiments.”

1. that
2. thought
3. about
4. ways
5. the
6. ourselves
7. to do
8. better
9. remembering
10. easily

1. 这里考查 so...that... 结构，表示“如此……以至于……”，所以填 that。
2. 根据“In the past”可知此句时态为一般过去时，think 的过去式是 thought，故填 thought。
3. learn...about... 是固定短语，意为“了解关于……”，所以填 about。
4. way 是可数名词，这里表示复数概念，用 ways，学生们寻找制作牙膏的方法。
5. 最高级 most important 前要用定冠词 the，故填 the。
6. by oneself 是固定短语，意为“独自”，这里主语是 we，其反身代词是 ourselves，我们必须自己在项目中解决很多问题。
7. “形容词 + enough + to do sth.” 是固定用法，表示“足够……去做某事”，所以填 to do。
8. much 修饰比较级，well 的比较级是 better，这个项目帮助学生更好地理解化学。
9. have difficulty in doing sth. 是固定结构，意为“做某事有困难”，remember 的动名词形式是 remembering，方亦欣在记忆化学方程式上有困难。
10. 这里要用 easy 的副词形式 easily 修饰动词 remember，在做这些实验后我容易地记住了它们。