3、用的一种结构。其句型为“too＋形容词或副词＋to do…”译为“太……而不能……”，它在形式上是肯定的，但在意义上是否定的。这一结构的具体用法如下： 1) “too…to…”本身已含有否定意思，因此，不定式前一般不加not。例如： 她太小了，还不能去上学。She is too young not to go to school． (×) She is too young to go to school． (√)2) 在too…to…结构中，若要指出动词不定式的逻辑主语时，则用too…for sb．
4、 to do 形式。例如： The box is too heavy for her to carry． 这个箱子太重，她抬不动。 This question is too hard for me to work out． 这道题太难了，我算不出来。3) 在too…to…结构中，如too前面有not, never, only等词时，此结构表示肯定意思。例如： One is never too old to learn．活到老，学到老。 4) 若too后接ready,pleased, glad等形容
5、词时，too相当于very, “too…to…”则表达肯定的意思。例如： I＇m too glad to help you． 我很乐意帮助你。 I＇m too pleased to see you． 见到你太高兴了。 5) 在too…to…结构中，当to do后面的宾语是句中的主语时，不定式之后不应该使用代词。如果不定式中动词为不及物动词，则应在动词之后再加上适当的介词。例如：The box is too heavy for her to carryit． (×) The box is too he
6、avy for her to carry．(√)Theroomistoodirtytolivein.这房间太脏，不能住。（句末的介词in不可省略）【展示交流】Step1.Warmup1. Ask the students to work in pairs. Tell the Ss to look at the pictures in the book and practise the short conversations, using the phrases. 2. T says: Today w
7、e talk about good table manners. In fact, good manners are basically as set of behaviours that people may reasonably expect. Let them describe the situation or act in out in class. (or show some pictures, let Ss talk about the following action)Step2:Li
8、stenandanswerthequestions.1. T says: We will listen to a dialogue between manner. 2. let Ss close the book and listen to the tape for the first time. 3.Ask Ss to open their book and read the exercise. 4. let them listen to the tape a se
