I will teach you everything you need to know on How To Repair Your Sewing Machine Admittedly, the book is mainly about sewing machines with just four of the 70 pages, including the copy clear, sharp pictures of many different sewing machines, cleaning, and timing, etc., so there is no need to turn pages back and forth in order to find the picture that goes with the text. It’s clear, and it’s simple instructions to teach you How To Repair Your Sewing Machine.
I will teach you how to thread all the different styles of sewing machines, plus winding the bobbin and selecting the correct needle.
I will show you how to properly clean all the different sewing machines, plus how to check the virious parts for wear and breakage. I will show you how to check for problems such as noisiness,thread breakage, needle breakage,etc.
I will show you how to straighten the needle and presser（压脚杆）bars and level the presser foot on all sewing machines.
I will show you how to check motors, lights, controls and wiring（线路）for various problems. I will show you how to properly time the needle bar, the hoor or shuttle, etc., so the sewing machine will sew perfectly on all tyes of material and satisfy customers.
I will show you how to set the tensions on all the different sewing machines by having an actual gauge（计量器）to use in this setting.
And I will show you where to purchase wholesale parts and new sewing machines, including where industrial machines can be purchased wholesale.
1.The purpose of the writer is to .
A.teach you how to repair your sewing machine
B.draw your attention to his book
C.show you where to repair your sewing your machine
D.show off his advantage over others
2.The underlined word in the third paragraph means ______.
A.use B.part C.breaking D.repair
3.In order to get a picture matching the text, you .
A.have to turn over the book B.don’t have to turn over the book
C.should read the whole book carefully D.need read the tips as follows
4.If you want to buy a lot of industrial machines, you can .
A.tell the writer of the book B.order them directly from the factory
C.find the detailed information in the book D.order according to the picture
之关键的牙是（）